Comet Donati

C/1858 L1 (Donati)
(Great Comet of 1858)

Donati's Comet, Oxford, 7:30 p.m., 5 Oct. 1858 by William Turner

Discovery
Discovered by| Giovanni Battista Donati
Discovery date| 1858
Alternative
designations| 1858 VI
Orbital characteristics A
Epoch| 8 October 1858 (JD 2399960.5)
Number of
observations| 1,000
Aphelion| ~289 AU
Perihelion| 0.578 AU
Semi-major axis| ~145 AU
Eccentricity| 0.996295
Orbital period| ~1,739 yr (outbound)
Inclination| 116.951°
TJupiter| –0.394
Rotation period| 4.6 hours
Comet total
magnitude (M1)| 3.3
Last perihelion| 30 September 1858
Next perihelion| ≈3600

Comet Donati, or Donati's Comet, formally designated C/1858 L1 and 1858 VI, is a long-period comet named after the Italian astronomer Giovanni Battista Donati who first observed it on June 2, 1858. After the Great Comet of 1811, it was the most brilliant comet that appeared in the 19th century. It was also the first comet to be photographed.

## Contents

* 1 Discovery and observations
* 1.1 Comet photographed
* 1.2 Orbital calculations
* 2 In art and culture
* 3 References
* 3.1 Notes
* 3.2 Citations
* 4 External links

## Discovery and observations

Donati, the comet's discoverer. Error creating thumbnail: Unable to save thumbnail to destinationDiagram for locating the comet, printed a week before nearest approach.

Donati first observed the comet on 2 June from the Florence Observatory: it was initially visible as a small nebula-like object of magnitude 7 near the "head" of Leo.[1] By mid-August it had brightened sufficiently to be visible to the naked eye.[2]

In September it passed into Ursa Major. For much of its apparition it occupied a unique position (among great comets) in the sky[2] and was particularly well placed for Northern Hemisphere viewers.[1]

It was nearest the Earth on October 10, 1858, and for much of October was a brilliant object with a long, scimitar-like dust tail and prominent gas tail. It remained a naked-eye object until November for Southern Hemisphere observers.[2] The final observation was by William Mann, chief assistant at the Royal Observatory, Cape of Good Hope, who detected it as a faint nebulosity on March 4, 1859.[3]

During its apparition the comet was particularly closely studied by the astronomer George Phillips Bond and his father William Cranch Bond. G. P. Bond incorporated these observations and those of many other astronomers into a monograph, An Account of the Great Comet of 1858, which remains his most important scientific work and for which he was awarded the Gold Medal of the Royal Astronomical Society, being the first American to receive the award.[4]

### Comet photographed

Donati's Comet was successfully photographed on September 27 by W. Usherwood, a portrait photographer at Walton-on-the-Hill, Surrey, using a 7-second exposure with an f/2.4 portrait lens, the first time a comet had been photographed.[5] Usherwood's photograph, which has not survived, showed the bright region around the comet's nucleus and a part of the tail. G. P. Bond also successfully photographed the comet on September 28 at Harvard College Observatory, the first comet photograph through a telescope. He made several attempts with increasing exposure times, finally achieving a discernible image. He later wrote, "only the nucleus and a little nebulosity 15" in diameter acted on the plate in an exposure of six minutes".[6]

### Orbital calculations

Barycentric orbital periods when outside planetary perturbations[7] | Epoch
1600  | Epoch
2200

|
|

Orbital period | 1966 yr | 1739 yr
Orbital eccentricity | 0.9963 | 0.9960
Aphelion | 313 AU | 289 AU

Orbits for the comet were calculated by Friedrich Emil von Asten and George William Hill, the latter's based on nearly 1000 positions.[8] The comet had an orbital inclination of 116.9°.[9] With an epoch 2200 barycentric orbital period approximated at 1739 years,[7] it is estimated that Donati's Comet will not be seen passing by Earth again until somewhere around the year 3600. As of 2023[update], JPL Horizons estimates that the comet is 147 astronomical unit|AU (22 billion km) from the Sun and continuing to move away from the Sun at 2.4 km/s (5,400 mph).[10]

The comet's orbit lies very close to that of Venus, with the minimum intersection distance being 0.0047 Astronomy:astronomical unit|astronomical units (700,000 km; 440,000 mi), which is smallest known distance a great comet can approach a terrestrial planet. It is possible the comet produces a strong meteor shower at the northern hemisphere.[11]

## In art and culture

The comet with both gas and dust tails depicted. Donati's Comet inspired a large number of artists, such as James Poole.

Donati's Comet is considered to be one of the most beautiful comets observed,[12] and was one of the brightest of the century, making a strong impression both on artists and the general public. After a prior period of hysteria on the subject of comets, especially in Paris (caused partly by incorrect calculations by John Russell Hind which suggested that one would strike the Earth in June 1857) Donati's Comet went on to be the most-observed of the century due to its excellent visibility in dark skies for Northern Hemisphere viewers, particularly in Europe, and fine weather in September and October.[13] William Henry Smyth, an English astronomer, recalled it as "one of the most beautiful objects that I have ever seen".[13] Donati himself, a relatively obscure figure, was propelled to the status of an astronomical hero, and the comet helped cultivate a general enthusiasm for astronomy among the public.[14]

Donati's Comet appears as a streak and star in the early evening sky of a painting by William Dyce, Pegwell Bay, Kent – a Recollection of October 5th 1858.[15] It was featured in a number of sketches and at least one painting by William Turner of Oxford, and in a painting, "The Comet of 1858, as seen from the Heights of Dartmoor", by Samuel Palmer. The Comet at Yell'ham, a 1902 poem by Thomas Hardy, was inspired by his recollections of Donati's Comet.[16]

Abraham Lincoln, then a candidate for a seat in the U.S. Senate, sat up on the porch of his hotel in Jonesboro, Illinois, to see "Donti's Comet" on September 14, 1858, the night before the third of his historic debates with Stephen Douglas.[17]

In his journals of the Malay Archipelago, naturalist Alfred Russel Wallace writes of seeing the comet in October 1858 off the island of Tidore in Indonesia. "I observed what seemed a fire of remarkable whiteness on the very summit of the hill ... the magnificent comet which was at the same time, astonishing all Europe. The nucleus presented to the naked eye a distinct disc of brilliant white light, from which the tail rose at an angle of about 30° or 35° with the horizon, curving slightly downwards, and terminating in a broad brush of faint light, the curvature of which diminished till it was nearly straight at the end. The portion of the tail next the comet appeared three or four times as bright as the most luminous portion of the milky way, and what struck me as a singular feature was that its upper margin, from the nucleus to very near the extremity, was clearly and almost sharply defined, while the lower side gradually shaded off into obscurity."[18]

The influence of the comet, particularly in visual and design terms, was such that traces of its appearance can be found in magazine and commercial illustrations, household objects, children's books and other items up until the early years of the 20th century.[14]

## References

### Notes

### Citations

1. ↑ 1.0 1.1 Stoyan, Atlas of Great Comets, Cambridge University Press, 2015, p.126
2. ↑ 2.0 2.1 2.2 Bortle, "The Bright Comet Chronicles", Harvard University, accessed February 14, 2017
3. ↑ Kronk, Cometography, v.2, p.273
4. ↑ Trimble et al., eds. (2007), Biographical Encyclopedia of Astronomers, p.147
5. ↑ Kronk, Cometography, v.2, p.270
6. ↑ Pasachoff, Jay M.; Olson, Roberta J. M.; Hazen, Martha L. (1996), "The Earliest Comet Photographs", Journal for the History of Astronomy (SAO/NASA Astrophysics Data System) 27: 129, doi:10.1177/002182869602700202, Bibcode: 1996JHA....27..129P, http://adsabs.harvard.edu/full/1996JHA....27..129P, retrieved August 17, 2013
7. ↑ 7.0 7.1 Horizons output. "Barycentric Osculating Orbital Elements for Comet C/1858 L1 (Donati)". https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND='1858+L1'&TABLE_TYPE='ELEMENTS'&START_TIME='1600-01-01'&STOP_TIME='2200-01-01'&STEP_SIZE='600 years'&CENTER='@0'&OUT_UNITS='AU-D'. Retrieved 2023-07-27. (epoch 2200 is PR= 6.35E+05 / 365.25 days = 1739 years)
8. ↑ Kronk, Cometography, v2, p.275
9. ↑ "C/1858 L1 (Donati) – JPL Small-Body Database Lookup". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1858L1.
10. ↑ JPL Horizons On-Line Ephemeris System. "JPL Horizons On-Line Ephemeris for Comet C/1858 L1 (Donati) 2023–2030". https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND='1858+L1'&START_TIME='2023-01-01'&STOP_TIME='2030-01-01'&STEP_SIZE='1 year'&QUANTITIES='19,22'.
11. ↑ Christou, A. A. (March 2010). "Annual meteor showers at Venus and Mars: lessons from the Earth". Monthly Notices of the Royal Astronomical Society 402 (4): 2759–2770. doi:10.1111/j.1365-2966.2009.16097.x. Bibcode: 2010MNRAS.402.2759C.
12. ↑ Burnham, Great Comets, 2000, p.69
13. ↑ 13.0 13.1 Stoyan, 2015, p.127
14. ↑ 14.0 14.1 Gasperini, "The worldwide impact of Donati's comet on art and society in the mid-19th century", Proceedings of IAU Symposium 2011, 340
15. ↑ Rothstein, Edward (March 2, 2009). "Darwin's wake splashed artists, too". The New York Times. Accessed March 4, 2009.
16. ↑ Gasperini, 2011, 343
17. ↑ White, Ronald C. Jr. (2009). A. Lincoln: A Biography, first edition. New York: Random House. p 273.
18. ↑ Wallace, Alfred Russel (1869). The Malay Archipelago. Chapter XXIII.

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* JPL DASTCOM Comet Table

## External links

* C/1858 L1 at the JPL Small-Body Database
* Close approach * Discovery * Ephemeris * Orbit diagram * Orbital elements * Physical parameters
* HDR Astrophotography: Simulations Atlas of Past Comets (1700 to 1899) by Nicolas Lefaudeux

* v
* t
* e

Comets

| Features|

* Nucleus
* Coma
* Tails
* Antitail
* Comet dust
* Meteor shower

|
|

Types|

* Periodic
* Numbered
* Lost
* Long period
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* Near-parabolic
* Hyperbolic
* Unknown-orbit
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* Sungrazing (Kreutz)
* Extinct
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Related|

* Naming of comets
* Centaur
* Comet discoverers
* LINEAR
* Extraterrestrial atmosphere
* Oort cloud
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* Asteroid

Exploration|

* List of missions to comets
* List of comets visited by spacecraft

Latest|

* 2I/Borisov
* C/2018 C2 (Lemmon)
* C/2017 U7
* 1I/2017 U1 ʻOumuamua
* C/2016 U1 (NEOWISE)
* C/2015 G2 (MASTER)
* C/2015 F5 (SWAN-XingMing)
* C/2015 F3
* C/2015 ER61 (PANSTARRS)
* C/2014 Q2 (Lovejoy)
* C/2014 E2 (Jacques)
* C/2013 US10 (Catalina)
* C/2013 A1 (Siding Spring)
* C/2012 S4 (PANSTARRS)
* C/2012 K1 (PANSTARRS)

Culture and
speculation|

* Antimatter comet
* Comets in fiction
* list
* Comet vintages

Lists of comets (more)

| Periodic
comets|

| Until 1985
(all)|

* 1P/Halley
* 2P/Encke
* 3D/Biela
* 4P/Faye
* 5D/Brorsen
* 6P/d'Arrest
* 7P/Pons–Winnecke
* 8P/Tuttle
* 9P/Tempel
* 10P/Tempel
* 11P/Tempel–Swift–LINEAR
* 12P/Pons–Brooks
* 13P/Olbers
* 14P/Wolf
* 15P/Finlay
* 16P/Brooks
* 17P/Holmes
* 18D/Perrine–Mrkos
* 19P/Borrelly
* 20D/Westphal
* 21P/Giacobini–Zinner
* 22P/Kopff
* 23P/Brorsen–Metcalf
* 24P/Schaumasse
* 25D/Neujmin
* 26P/Grigg–Skjellerup
* 27P/Crommelin
* 28P/Neujmin
* 29P/Schwassmann–Wachmann
* 30P/Reinmuth
* 31P/Schwassmann–Wachmann
* 32P/Comas Solà
* 33P/Daniel
* 34D/Gale
* 35P/Herschel–Rigollet
* 36P/Whipple
* 37P/Forbes
* 38P/Stephan–Oterma
* 39P/Oterma
* 40P/Väisälä
* 41P/Tuttle–Giacobini–Kresák
* 42P/Neujmin
* 43P/Wolf–Harrington
* 44P/Reinmuth
* 45P/Honda–Mrkos–Pajdušáková
* 46P/Wirtanen
* 47P/Ashbrook–Jackson
* 48P/Johnson
* 49P/Arend–Rigaux
* 50P/Arend
* 51P/Harrington
* 52P/Harrington–Abell
* 53P/Van Biesbroeck
* 54P/de Vico–Swift–NEAT
* 55P/Tempel–Tuttle
* 56P/Slaughter–Burnham
* 57P/du Toit–Neujmin–Delporte
* 58P/Jackson–Neujmin
* 59P/Kearns–Kwee
* 60P/Tsuchinshan
* 61P/Shajn–Schaldach
* 62P/Tsuchinshan
* 63P/Wild
* 64P/Swift–Gehrels
* 65P/Gunn
* 66P/du Toit
* 67P/Churyumov–Gerasimenko
* 68P/Klemola
* 69P/Taylor
* 70P/Kojima
* 71P/Clark
* 72P/Denning–Fujikawa
* 73P/Schwassmann–Wachmann
* 74P/Smirnova–Chernykh
* 75D/Kohoutek
* 76P/West–Kohoutek–Ikemura
* 77P/Longmore
* 78P/Gehrels
* 79P/du Toit–Hartley
* 80P/Peters–Hartley
* 81P/Wild
* 82P/Gehrels
* 83D/Russell
* 84P/Giclas
* 85D/Boethin
* 86P/Wild
* 87P/Bus
* 88P/Howell
* 89P/Russell
* 90P/Gehrels
* 91P/Russell
* 92P/Sanguin
* 93P/Lovas
* 94P/Russell
* 95P/Chiron
* 96P/Machholz
* 97P/Metcalf–Brewington
* 98P/Takamizawa
* 99P/Kowal
* 100P/Hartley
* 101P/Chernykh
* 102P/Shoemaker

|

After 1985
(notable)|

* 103P/Hartley
* 105P/Singer Brewster
* 107P/Wilson–Harrington
* 109P/Swift–Tuttle
* 111P/Helin–Roman–Crockett
* 114P/Wiseman–Skiff
* 128P/Shoemaker–Holt
* 139P/Väisälä–Oterma
* 144P/Kushida
* 147P/Kushida–Muramatsu
* 153P/Ikeya–Zhang
* 163P/NEAT
* 168P/Hergenrother
* 169P/NEAT
* 177P/Barnard
* 178P/Hug–Bell
* 205P/Giacobini
* 209P/LINEAR
* 238P/Read
* 246P/NEAT
* 252P/LINEAR
* 255P/Levy
* 273P/Pons–Gambart
* 276P/Vorobjov
* 289P/Blanpain
* 311P/PANSTARRS
* 322P/SOHO
* 332P/Ikeya-Murakami
* 354P/LINEAR
* 362P
* P/1997 B1 (Kobayashi)
* P/2010 B2 (WISE)
* P/2011 NO1 (Elenin)

Comet-like
asteroids|

* 596 Scheila
* 2060 Chiron (95P)
* 4015 Wilson–Harrington (107P)
* 7968 Elst–Pizarro (133P)
* 165P/LINEAR
* 166P/NEAT
* 167P/CINEOS
* 60558 Echeclus (174P)
* 118401 LINEAR (176P)
* 238P/Read
* 259P/Garradd
* 311P/PANSTARRS
* 324P/La Sagra
* P/2010 A2 (LINEAR)
* P/2012 F5 (Gibbs)
* P/2012 T1 (PANSTARRS)
* P/2013 R3 (Catalina-PANSTARRS)
* (300163) 2006 VW139

Lost|

| Recovered|

* 11P/Tempel–Swift–LINEAR
* 15P/Finlay
* 17P/Holmes
* 27P/Crommelin
* 54P/de Vico–Swift–NEAT
* 55P/Tempel–Tuttle
* 57P/du Toit–Neujmin–Delporte
* 69P/Taylor
* 72P/Denning–Fujikawa
* 80P/Peters–Hartley
* 97P/Metcalf–Brewington
* 107P/Wilson–Harrington
* 109P/Swift–Tuttle
* 113P/Spitaler
* 122P/de Vico
* 157P/Tritton
* 177P/Barnard
* 205P/Giacobini
* 206P/Barnard–Boattini
* 271P/van Houten–Lemmon
* 273P/Pons–Gambart
* 289P/Blanpain

|

Destroyed|

* 3D/Biela
* 73P/Schwassmann–Wachmann
* D/1993 F2 (Shoemaker–Levy 9)

Not found|

* D/1770 L1 (Lexell)
* 5D/Brorsen
* 18D/Perrine–Mrkos
* 20D/Westphal
* 25D/Neujmin
* 34D/Gale
* 75D/Kohoutek
* 83D/Russell
* 85D/Boethin

Visited by
spacecraft|

* 21P/Giacobini–Zinner (1985)
* 1P/Halley (1986)
* 26P/Grigg–Skjellerup (1992)
* 19P/Borrelly (2001)
* 81P/Wild (2004)
* 9P/Tempel (2005, 2011)
* C/2006 P1 (2007)
* 103P/Hartley (2010)
* 67P/Churyumov–Gerasimenko (2014)

Non-Periodic
comets
(notable)|

| Until 1910|

* C/-43 K1 (Caesar's Comet)
* X/1106 C1 (Great Comet of 1106)
* C/1577 V1 (Great Comet of 1577)
* C/1652 Y1
* C/1680 V1 (Great Comet of 1680, Kirsch's Comet, Newton's Comet))
* C/1702 H1 (Comet of 1702)
* C/1729 P1 (Comet of 1729, Comet Sarabat)
* C/1743 X1 (Great Comet of 1744, Comet Klinkenberg-Chéseaux)
* C/1760 A1 (Great Comet of 1760)
* C/1769 P1 (Great Comet of 1769)
* C/1807 R1 (Great Comet of 1807)
* C/1811 F1 (Great Comet of 1811)
* C/1819 N1 (Great Comet of 1819)
* C/1823 Y1 (Great Comet of 1823)
* C/1843 D1 (Great March Comet of 1843)
* C/1847 T1 (Miss Mitchell's Comet)
* C/1858 L1 (Comet Donati)
* C/1861 G1 (Comet Thatcher)
* C/1861 J1 (Great Comet of 1861)
* C/1865 B1 (Great Southern Comet of 1865)
* X/1872 X1 (Pogson's Comet)
* C/1874 H1 (Comet Coggia)
* C/1881 K1 (Comet Tebbutt)
* C/1882 R1 (Great Comet of 1882)
* C/1887 B1 (Great Southern Comet of 1887)
* C/1890 V1 (Comet Zona)
* C/1901 G1 (Great Comet of 1901)
* C/1910 A1 (Great January Comet of 1910)

|

After 1910|

* C/1911 O1 (Brooks)
* C/1911 S3 (Beljawsky)
* C/1927 X1 (Skjellerup–Maristany)
* C/1931 P1 (Ryves)
* C/1941 B2 (de Kock-Paraskevopoulos) [de; de]
* C/1947 X1 (Southern Comet) [de; de; C/1947 X1 (Südkomet)]
* C/1948 V1 (Eclipse)
* C/1956 R1 (Arend–Roland)
* C/1957 P1 (Mrkos) [de; de]
* C/1961 O1 (Wilson-Hubbard) [de; de]
* C/1961 R1 (Humason)
* C/1962 C1 (Seki-Lines) [de; de]
* C/1963 R1 (Pereyra)
* C/1965 S1 (Ikeya-Seki)
* C/1969 Y1 (Bennett)
* C/1970 K1 (White–Ortiz–Bolelli)
* C/1973 E1 (Kohoutek)
* C/1975 V1 (West)
* C/1980 E1 (Bowell)
* C/1983 H1 (IRAS–Araki–Alcock)
* C/1989 X1 (Austin)
* C/1989 Y1 (Skorichenko–George)
* C/1992 J1 (Spacewatch–Rabinowitz)
* C/1993 Y1 (McNaught–Russell)
* C/1995 O1 (Hale–Bopp)
* C/1996 B2 (Hyakutake)
* C/1997 L1 (Zhu–Balam)
* C/1998 H1 (Stonehouse)
* C/1998 J1 (SOHO)
* C/1999 F1 (Catalina)
* C/1999 S4 (LINEAR)
* C/2000 U5 (LINEAR)
* C/2000 W1 (Utsunomiya-Jones)
* C/2001 OG108 (LONEOS)
* C/2001 Q4 (NEAT)
* C/2002 T7 (LINEAR)
* C/2003 A2 (Gleason)
* C/2004 F4 (Bradfield) [de; de]
* C/2004 Q2 (Machholz)
* C/2006 A1 (Pojmański)
* C/2006 M4 (SWAN)
* C/2006 P1 (McNaught)
* C/2007 E2 (Lovejoy)
* C/2007 F1 (LONEOS)
* C/2007 K5 (Lovejoy)
* C/2007 N3 (Lulin)
* C/2007 Q3 (Siding Spring)
* C/2007 W1 (Boattini)
* C/2008 Q1 (Matičič)
* C/2009 F6 (Yi–SWAN)
* C/2009 R1 (McNaught)
* C/2010 X1 (Elenin)
* C/2011 L4 (PANSTARRS)
* C/2011 W3 (Lovejoy)
* C/2012 E2 (SWAN)
* C/2012 F6 (Lemmon)
* C/2012 K1 (PANSTARRS)
* C/2012 S1 (ISON)
* C/2012 S4 (PANSTARRS)
* C/2013 A1 (Siding Spring)
* C/2013 R1 (Lovejoy)
* C/2013 US10 (Catalina)
* C/2013 V5 (Oukaimeden)
* C/2014 E2 (Jacques)
* C/2014 Q2 (Lovejoy)
* C/2015 ER61 (PANSTARRS)
* C/2015 V2 (Johnson)
* 1I/2017 U1 ʻOumuamua
* C/2017 U7
* C/2018 C2 (Lemmon)
* C/2019 E3 (ATLAS)
* 2I/Borisov

After 1910
(by name)|

* Arend–Roland
* Austin
* Beljawsky
* Bennett
* Boattini
* Bowell
* Bradfield [de; de]
* Brooks
* Catalina
* C/1999 F1
* C/2013 US10
* de Kock–Paraskevopoulos [de; de]
* Eclipse
* Elenin
* Hale-Bopp
* Humason
* Hyakutake
* Ikeya-Seki
* IRAS–Araki–Alcock
* ISON
* Jacques
* Johnson
* Kohoutek
* Lemmon
* C/2012 F6
* C/2018 C2
* LINEAR
* C/1999 S4
* C/2000 U5
* C/2002 T7
* LONEOS
* C/2001 OG108
* C/2007 F1
* Lovejoy
* C/2007 E2
* C/2007 K5
* C/2011 W3
* C/2013 R1
* C/2014 Q2
* Lulin
* Machholz
* Matičič
* McNaught
* C/2006 P1
* C/2009 R1
* McNaught–Russell
* Mrkos [de; de]
* NEAT
* Oukaimeden
* ʻOumuamua
* Pan-STARRS
* C/2011 L4
* C/2012 K1
* C/2012 S4
* 311P
* C/2015 ER61
* Pereyra
* Pojmański
* Ryves
* Seki–Lines [de; de]
* Siding Spring
* C/2007 Q3
* C/2013 A1
* Skjellerup–Maristany
* Skorichenko–George
* SOHO
* Southern [de; de; C/1947 X1 (Südkomet)]
* Spacewatch–Rabinowitz
* Stonehouse
* SWAN
* C/2006 M4
* C/2012 E2
* Utsunomiya–Jones
* West
* White–Ortiz–Bolelli
* Wilson–Hubbard [de; de]
* Yi–SWAN
* Zhu–Balam

* Category
* Commons
* Wikinews

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