XX Tauri

Short description: 1927 Nova seen in the constellation Taurus

XX Tauri

Location of XX Tauri (circled in red)

Observation data
Epoch J2000.0 Equinox (celestial coordinates)
Constellation | Taurus
Right ascension |  05h 19m 24.467s[1]
Declination | +16° 43′ 01.02″[1]
Apparent magnitude (V) | 5.9p — 18.5p[2]
Astrometry
Distance| 3500[3] pc
Characteristics
Variable type | nova
Other designations

Nova Tau 1927, AAVSO 0513+16

Database references
SIMBAD| data
The light curve of XX Tauri, plotted from Harvard plate data,[4] (shown in blue) and AAVSO data (shown in green).

XX Tauri (Nova Tauri 1927) was a nova, which appeared in the constellation Taurus in 1927. It was discovered by Arnold Schwassmann and Arno Arthur Wachmann at Hamburg Observatory on an objective prism photographic plate taken on 18 November 1927. Subsequent examination of pre-discovery photographic plates taken at the Harvard College Observatory showed that the peak brightness, magnitude 5.9, occurred on 1 October 1927, at which point it may have been faintly visible to the naked eye.[5] By 1988 it had faded below magnitude 19.8.[6]

XX Tauri faded three magnitudes from peak brightness in just 43 days, making it a "fast nova". Its post eruption light curve shows small amplitude (~0.1 magnitude) variations of timescales of days, hours and minutes, which makes the determination of the orbital period of the binary system comprising the nova difficult. The orbital period may be 0.136±0.002 days.[7]

In 1984 a small (radius 2.2 arc second) nova remnant surrounding XX Tau was discovered using the Hale Telescope.[8] The expansion of that remnant has been used to derive a distance estimate of 3500 parsecs.[3]

## References

1. ↑ 1.0 1.1 Webbink, R.F.; Hazen, M.L.; Hoffleit, D. (July 2002). "Coordinates and Identifications of Harvard Variables". Information Bulletin on Variable Stars 5298: 1. Bibcode: 2002IBVS.5298....1W. https://ui.adsabs.harvard.edu/abs/2002IBVS.5298....1W. Retrieved 25 December 2020.
2. ↑ Downes, Ronald; Webbink, Ronald F.; Shara, Michael M. (April 1997). "A Catalog and Atlas of Cataclysmic Variables-Second Edition". Publications of the Astronomical Society of the Pacific 109: 345–440. doi:10.1086/133900. Bibcode: 1997PASP..109..345D. https://ui.adsabs.harvard.edu/abs/1997PASP..109..345D. Retrieved 25 December 2020.
3. ↑ 3.0 3.1 Shafter, A.W. (September 1997). "On the Nova Rate in the Galaxy". The Astrophysical Journal 487 (1): 226–236. doi:10.1086/304609. Bibcode: 1997ApJ...487..226S. https://ui.adsabs.harvard.edu/abs/1997ApJ...487..226S. Retrieved 26 December 2020.
4. ↑ Harwood, Margaret (March 1928). "Nova Tauri 1927". Harvard College Observatory Bulletin 856 (856): 12. Bibcode: 1928BHarO.856R..12H. http://adsabs.harvard.edu/full/1928BHarO.856R..12H. Retrieved 26 December 2020.
5. ↑ Duerbeck, Hilmar W. (March 1987). "A Reference Catalogue and Atlas of Galactic Novae". Space Science Reviews 45 (1–2): 1–14. doi:10.1007/BF00187826. Bibcode: 1987SSRv...45....1D. https://ui.adsabs.harvard.edu/abs/1987SSRv...45....1D. Retrieved 25 December 2020.
6. ↑ Szkody, Paula (August 1994). "BVRGK Observations of Northern Hemisphere Old Novae". The Astronomical Journal 108: 639. doi:10.1086/117098. Bibcode: 1994AJ....108..639S. https://ui.adsabs.harvard.edu/abs/1994AJ....108..639S. Retrieved 26 December 2020.
7. ↑ Rodr ́ıguez-Gil, P.; Torres, M.A.P. (February 2005). "Time-resolved photometry of the nova remnants DM Gem, CP Lac, GI Mon, V400 Per, CT Ser and XX Tau". Astronomy and Astrophysics 431: 289–296. doi:10.1051/0004-6361:20041112. Bibcode: 2005A&A...431..289R.
8. ↑ Cohen, J.G. (May 1985). "Nova shells. II. Calibration of the distance scale using novae". The Astrophysical Journal 292: 90–103. doi:10.1086/163135. Bibcode: 1985ApJ...292...90C. https://ui.adsabs.harvard.edu/abs/1985ApJ...292...90C. Retrieved 26 December 2020.

* v
* t
* e

Stars of Taurus

Bayer|

* α (Aldebaran)
* β (Elnath)
* γ (Prima Hyadum)
* δ1 (Secunda Hyadum)
* δ2
* δ3
* ε (Ain)
* ζ (Tianguan)
* η (Alcyone)
* θ1
* θ2
* ι
* κ1
* κ2
* λ
* μ
* ν
* ξ
* ο
* π
* ρ
* σ1
* σ2
* τ
* υ
* φ
* χ
* ψ
* ω1
* ω2

Flamsteed|

* 4 (s)
* 5 (f)
* 6 (t)
* 7
* 9
* 10
* 11
* 12
* 13
* 14
* 16 (Celaeno)
* 17 (Electra)
* 18
* 19 (Taygeta)
* 20 (Maia)
* 21 (Asterope)
* 22 (Asterope II)
* 23 (Merope)
* 24
* 26
* 27 (Atlas)
* 28 (Pleione)
* 29 (u)
* 30 (e)
* 31
* 32
* 33
* 36
* 37 (A1)
* 39 (A2)
* 40
* 41
* 44 (p)
* 45
* 46
* 47
* 48
* 51
* 53
* 55
* 56
* 57 (h)
* 58
* 60
* 62
* 63
* 66 (r)
* 70
* 71
* 72
* 75
* 76
* 79 (b)
* 80
* 81
* 83
* 84
* 85
* 88 (d)
* 89
* 90 (c)
* 93
* 95
* 96
* 97 (i)
* 98 (k)
* 99
* 101
* 103
* 104 (m)
* 105
* 106 (i)
* 107
* 108
* 109 (n)
* 110
* 111
* 113
* 114 (o)
* 115
* 116
* 117
* 118
* 119
* 120
* 121
* 122
* 125
* 126
* 127
* 128
* 129
* 130
* 131
* 132
* 133
* 134
* 135
* 136
* 137
* 139
* 140
* 44 Eri
* 49 Eri

Variable|

* T
* Y
* Z
* RR
* RV
* RW
* RY
* RZ
* SU
* SV
* SZ
* TU
* UX
* UZ
* VY
* XX
* XZ
* AA
* AH
* BP
* CD
* CI
* CQ
* CT
* CU
* CW
* CY
* DD
* DF
* DG
* DH
* DI
* DL
* DM
* DN
* DO
* DQ
* DR
* DS
* EQ
* EU
* FN
* FS
* FV
* GG
* GI
* GK
* GV
* HK
* HL
* HU
* IK
* V410
* V471
* V473
* V479
* V534
* V624
* V647
* V650
* V710
* V711
* V731
* V766
* V773
* V774
* V781
* V807
* V818
* V819
* V826
* V827
* V827
* V830
* V833
* V834
* V836
* V837
* V892
* V987
* V1038
* V1062
* V1116
* V1137
* V1141
* V1143
* V1156
* V1187
* V1229
* V1232
* V1241 (WX Eri)

HR|

* 1023
* 1028
* 1039
* 1067
* 1085
* 1089
* 1102
* 1103
* 1110
* 1119
* 1137
* 1159
* 1172
* 1183
* 1185
* 1188
* 1201
* 1222
* 1224
* 1233
* 1237
* 1238
* 1253
* 1254
* 1257
* 1279
* 1280
* 1284
* 1295
* 1307
* 1310
* 1315
* 1349
* 1354
* 1358
* 1360
* 1370
* 1385
* 1400
* 1402
* 1403
* 1406
* 1413
* 1425
* 1427
* 1436
* 1442
* 1445
* 1446
* 1448
* 1455
* 1477
* 1480
* 1490
* 1512
* 1517
* 1554
* 1566
* 1575
* 1585
* 1633
* 1642
* 1741
* 1750
* 1755
* 1831
* 1847
* 1860
* 1878
* 1902
* 1921
* 1929
* 1954
* 1997
* 2013
* 2074

HD|

* 21032
* 21585
* 23514
* 23712
* 24040
* 24368
* 24496
* 26292
* 27860
* 28086
* 28375
* 28678
* 29627
* 29647
* 36112
* 37124
* 38263
* 38524
* 285507

Gliese|

* Gliese 176

Other|

* 2MASS J03552337+1133437
* 2MASS J04414489+2301513
* A0535+26
* BD +24 692
* Butterfly star
* CoKu Tau/4
* Crab Pulsar
* Elias 16
* Elias 18
* GD 71
* Haro 6-37
* HBC 379
* HH 30
* HII 686
* HII 1306
* HII 1883
* HII 3163
* HL Tau 76
* HP Tau/G2
* Hubble I 4
* HZ 9
* IRAS 04239+2436
* IRAS 04248+2612
* IRAS 04325+2402
* IRAS 04381+2540
* L1489 IRS
* L1527
* L1551 IRS 5
* L1521F-IRS
* LkCa 15
* MWC 480
* PSR B0525+21
* PSR B0540+23
* PSR J0348+0432
* PSR J0538+2813
* Teide 1
* TMR-1
* TMC-1A
* WD 0346+246
* WISE 0410+1502

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