SP77 46-44

Short description: Star in the constellation Dorado

SP77 46-44  Observation data
Equinox J2000.0]] (ICRS)

Constellation | Dorado[1]
Right ascension |  05h 29m 42.2038s[2]
Declination | −68° 57′ 17.351″[2]
Apparent magnitude (V) | 11.54 (var.)[3]
Characteristics
Evolutionary stage | Red supergiant
Spectral type | M2.5 Ia-Iab[4]
Apparent magnitude (B) | 14.04[5]
Apparent magnitude (V) | 12.15[5]
Apparent magnitude (R) | 10.99[5]
Apparent magnitude (J) | 7.922±0.024[6]
Apparent magnitude (H) | 7.192±0.047[6]
Apparent magnitude (K) | 6.886±0.029[6]
B−V color index | 1.89
V−R color index | 1.16
J−H color index | 0.730
J−K color index | 1.036
Variable type | yes[3]
Astrometry
Radial velocity (Rv)| 273.0±0.3[5] km/s
Proper motion (μ)|  RA: 1.445[2] mas/yr
Dec.: 0.463[2] mas/yr
Details
Radius| 1,278[lower-alpha 1] R☉
Luminosity| 221,000[7] – 251,000[8] L☉
Surface gravity (log g)| 0.5[7] cgs
Temperature| 3,500[7] K
Other designations

SP77 46-44, WOH S341, W60 A27, 2MASS J05294221-6857173[9]

Database references
SIMBAD| data

SP77 46-44 (WOH S341) is a red supergiant star found in the Large Magellanic Cloud in the constellation of Dorado. It is one of the largest stars discovered, with a radius over 1,200 solar radii. If placed in the Solar System, its photosphere would engulf the orbit of Jupiter.

The apparent magnitude of SP77 46-44 varies by about 0.8 magnitudes around 11.5.[3] No variable star classification has been assigned.[10]

## Notes

1. ↑ Applying the Stefan–Boltzmann law with a nominal solar effective temperature of 5,772 K:

(5772/3500)4*220,830=1,278.04 R⊙

## References

1. ↑ Staff (2 August 2008). "Finding the constellation which contains given sky coordinates". DJM.cc. http://djm.cc/constellation.html. Retrieved 16 July 2020.
2. ↑ 2.0 2.1 2.2 2.3 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
3. ↑ 3.0 3.1 3.2 Szczygieł, D. M.; Stanek, K. Z.; Bonanos, A. Z.; Pojmański, G.; Pilecki, B.; Prieto, J. L. (2010). "Variability of Luminous Stars in the Large Magellanic Cloud Using 10 Years of ASAS Data". The Astronomical Journal 140 (1): 14. doi:10.1088/0004-6256/140/1/14. Bibcode: 2010AJ....140...14S.
4. ↑ González-Fernández, Carlos; Dorda, Ricardo; Negueruela, Ignacio; Marco, Amparo (2015). "A new survey of cool supergiants in the Magellanic Clouds". Astronomy & Astrophysics 578: A3. doi:10.1051/0004-6361/201425362. Bibcode: 2015A&A...578A...3G.
5. ↑ 5.0 5.1 5.2 5.3 Massey, Philip; Olsen, K. A. G. (2003). "The Evolution of Massive Stars. I. Red Supergiants in the Magellanic Clouds". The Astronomical Journal 126 (6): 2867–2886. doi:10.1086/379558. Bibcode: 2003AJ....126.2867M.
6. ↑ 6.0 6.1 6.2 Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E. et al. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues 2246: II/246. Bibcode: 2003yCat.2246....0C. http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=II/246.
7. ↑ 7.0 7.1 7.2 Groenewegen, Martin A. T.; Sloan, Greg C. (2018). "Luminosities and mass-loss rates of Local Group AGB stars and Red Supergiants". Astronomy & Astrophysics 609: A114. doi:10.1051/0004-6361/201731089. ISSN 0004-6361. Bibcode: 2018A&A...609A.114G.
8. ↑ Davies, Ben; Crowther, Paul A.; Beasor, Emma R. (2018). "The luminosities of cool supergiants in the Magellanic Clouds, and the Humphreys–Davidson limit revisited". Monthly Notices of the Royal Astronomical Society 478 (3): 3138–3148. doi:10.1093/mnras/sty1302. Bibcode: 2018MNRAS.478.3138D.
9. ↑ "[W60 A27 -- Red supergiant star"]. SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=SP77+46-44. Retrieved 1 August 2020.
10. ↑ Samus, N. N. et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S 1: B/gcvs. Bibcode: 2009yCat....102025S.

* v
* t
* e

Dorado constellation

Stars
(list)|

| Bayer|

* α
* β
* γ
* δ
* ε
* ζ
* η1
* η2
* θ
* κ
* λ
* ν
* π1
* π2

|

Variable|

* R
* S
* RW
* WZ
* XY
* XZ
* AA
* AB
* AZ
* BB

HR|

* 1227
* 1365
* 1405
* 1540
* 1597
* 1598
* 1859
* 1882
* 1917
* 1936
* 2073
* 2102
* 2408

HD|

* 28254
* 30177
* 33579
* 34664
* 36402
* 37974
* 38282
* 38344
* 38489
* 39194
* 269810
* 269858
* 269908

Gliese|

* Gliese 163
* Gliese 167

Other|

* A0538-66
* BAT99-66
* BAT99-68
* BAT99-98
* BAT99-104
* BE 381
* BI 253
* CAL-83
* HE 0437-5439
* HV 883
* LH41-1042
* LH54-425
* LMC195-1
* LMC X-1
* LMC X-2
* LMC X-3
* LMC X-4
* Melnick 34
* Melnick 42
* PSR J0537−6910
* PSR J0540−6919
* R85
* R84
* R99
* R134
* R136a1
* R136a2
* R136a3
* R136a5
* R136b
* R136c
* R139
* R145
* SGR 0525−66
* VFTS 102
* VFTS 352
* VFTS 682
* WASP-62
* WOH G64

Former|

* Sanduleak -69 202 (exploded in 1987)

Star
clusters|

| Association|

* NGC 1712
* NGC 1731
* NGC 1747
* NGC 1748
* NGC 1761
* NGC 1763
* NGC 1769
* NGC 1787
* NGC 1869
* NGC 1871
* NGC 1873
* NGC 1898
* NGC 1910
* NGC 1923
* NGC 1925
* NGC 1935
* NGC 1937
* NGC 1948
* NGC 1955
* NGC 1968
* NGC 2001
* NGC 2014
* NGC 2015
* NGC 2021
* NGC 2033
* NGC 2034
* NGC 2040
* NGC 2044
* NGC 2050
* NGC 2055
* NGC 2074
* NGC 2093

|

Open|

* Hodge 301
* LH 95
* NGC 1641
* NGC 1649
* NGC 1676
* NGC 1693
* NGC 1695
* NGC 1697
* NGC 1698
* NGC 1704
* NGC 1712
* NGC 1718
* NGC 1732
* NGC 1733
* NGC 1734
* NGC 1735
* NGC 1743
* NGC 1745
* NGC 1749
* NGC 1755
* NGC 1764
* NGC 1767
* NGC 1768
* NGC 1772
* NGC 1774
* NGC 1776
* NGC 1782
* NGC 1785
* NGC 1793
* NGC 1795
* NGC 1801
* NGC 1804
* NGC 1810
* NGC 1814
* NGC 1816
* NGC 1820
* NGC 1822
* NGC 1825
* NGC 1826
* NGC 1828
* NGC 1829
* NGC 1830
* NGC 1834
* NGC 1835
* NGC 1836
* NGC 1838
* NGC 1839
* NGC 1842
* NGC 1844
* NGC 1846
* NGC 1847
* NGC 1849
* NGC 1850
* NGC 1852
* NGC 1854/1855
* NGC 1856
* NGC 1858
* NGC 1859
* NGC 1860
* NGC 1862
* NGC 1863
* NGC 1864
* NGC 1865
* NGC 1867
* NGC 1870
* NGC 1872
* NGC 1874
* NGC 1876
* NGC 1877
* NGC 1880
* NGC 1881
* NGC 1882
* NGC 1885
* NGC 1887
* NGC 1894
* NGC 1895
* NGC 1897
* NGC 1900
* NGC 1901
* NGC 1902
* NGC 1903
* NGC 1905
* NGC 1911
* NGC 1913
* NGC 1915
* NGC 1916
* NGC 1917
* NGC 1919
* NGC 1920
* NGC 1922
* NGC 1926
* NGC 1928
* NGC 1929
* NGC 1932
* NGC 1940
* NGC 1941
* NGC 1942
* NGC 1946
* NGC 1949
* NGC 1951
* NGC 1953
* NGC 1958
* NGC 1966
* NGC 1967
* NGC 1969
* NGC 1971
* NGC 1972
* NGC 1974
* NGC 1983
* NGC 1984
* NGC 1994
* NGC 1997
* NGC 2002
* NGC 2003
* NGC 2004
* NGC 2005
* NGC 2006
* NGC 2009
* NGC 2011
* NGC 2027
* NGC 2041
* NGC 2042
* NGC 2053
* NGC 2062
* NGC 2070
* NGC 2077
* NGC 2079
* NGC 2083
* NGC 2084
* NGC 2085
* NGC 2086
* NGC 2088
* NGC 2091
* NGC 2092
* NGC 2094
* NGC 2095
* NGC 2096
* NGC 2097
* NGC 2098
* NGC 2100
* NGC 2102
* NGC 2105
* NGC 2109
* NGC 2113
* NGC 2114
* NGC 2116
* NGC 2117
* NGC 2118
* NGC 2120
* NGC 2123
* NGC 2125
* NGC 2127
* NGC 2130
* NGC 2135
* NGC 2136
* NGC 2137
* NGC 2138
* NGC 2140
* NGC 2147
* NGC 2151
* NGC 2153
* NGC 2154
* NGC 2155
* NGC 2157
* NGC 2160
* NGC 2164
* NGC 2166
* NGC 2172
* NGC 2176
* NGC 2177
* NGC 2181
* NGC 2193
* NGC 2197
* NGC 2214
* NGC 2241

Globular|

* Hodge 11
* NGC 1644
* NGC 1652
* NGC 1696
* NGC 1756
* NGC 1783
* NGC 1786
* NGC 1805
* NGC 1806
* NGC 1818
* NGC 1831
* NGC 1866
* NGC 1868
* NGC 1978
* NGC 2108
* NGC 2156
* NGC 2159
* NGC 2162
* NGC 2210
* NGC 2231
* NGC 2249
* NGC 2257

Nebulae|

| H II|

* N119
* N180B
* N11
* N159
* N44
* N55
* NGC 1722
* NGC 1722
* NGC 1727
* NGC 1737
* NGC 1760
* NGC 1770
* NGC 1773
* NGC 1899
* NGC 1934
* NGC 1936
* NGC 2030
* NGC 2032
* NGC 2080
* NGC 2081
* Tarantula Nebula

|

Planetary|

* LMC-N66

SNR|

* Honeycomb Nebula
* LMC N49
* NGC 1918
* NGC 2029
* NGC 2060
* SNR 0509-67.5

Galaxies|

| NGC|

* 1500
* 1506
* 1515
* 1522
* 1533
* 1546
* 1549
* 1553
* 1556
* 1566
* 1578
* 1581
* 1596
* 1602
* 1617
* 1669
* 1672
* 1688
* 1703
* 1706
* 1765
* 1771
* 1796
* 1809
* 1824
* 1853
* 1892
* 1947
* 2082
* 2150
* 2187
* 2228
* 2229
* 2230
* 2233
* 2235

|

Other|

* IC 2082
* LEDA 89996

Partly in Mensa|

Large Magellenic Cloud

Galaxy clusters|

* NGC 1566 Group

Other|

* GRB 790305b

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*[Dec.:]: Declination
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