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101 Piscium - Wikipedia

From Wikipedia, the free encyclopedia

101 Piscium
Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation	Pisces
Right ascension	01^h 35^m 46.44226^s^[1]
Declination	+14° 39′ 41.1144″^[1]
Apparent magnitude (V)	6.23^[2]
Characteristics
Spectral type	B9.5 III^[3]
U−B color index	−0.151^[4]
B−V color index	−0.036±0.005^[2]
Astrometry

Radial velocity (R_v)	−10.10^[5] km/s
Proper motion (μ)	RA: +3.287^[1] mas/yr Dec.: −8.052^[1] mas/yr
Parallax (π)	2.3343 ± 0.0663 mas^[1]
Distance	1,400 ± 40 ly (430 ± 10 pc)
Absolute magnitude (M_V)	−2.07^[2]

Details

Mass	4.53±0.51^[6] `M`_☉
Radius	3.6^[7] `R`_☉
Luminosity	1,037+523 −347^[6] `L`_☉
Surface gravity (log g)	2.907±0.028^[8] cgs
Temperature	10,471+49 −48^[6] K
Rotational velocity (v sin i)	246^[6] km/s

Other designations
101 Psc, NSV 559, BD+13° 240, GC 1929, HD 9766, HIP 7436, HR 455, SAO 92530^[9]
Database references
SIMBAD	data

101 Piscium is a star in the zodiac constellation of Pisces,^[9] located around 1,400 light years away from the Sun. This appears as a dim, blue-white hued star near the lower limit of visibility to the naked eye at an apparent visual magnitude of 6.23.^[2] It is a suspected variable star with the designation NSV 559;^[10] 101 Piscium is the Flamsteed designation. The star is moving closer to the Earth with a heliocentric radial velocity of −10 km/s.^[5]

This object has a stellar classification of B9.5 III,^[3] matching a giant star that has consumed the hydrogen at its core and is evolving away from the main sequence.^[6] It is spinning rapidly with a projected rotational velocity of 246^[6] km/s, compared to a critical velocity of 270 km/s.^[8] The star has 4.5^[6] times the mass of the Sun and about 3.6^[7] times the Sun's radius. It is radiating around 1,000^[6] times the luminosity of the Sun from its photosphere at an effective temperature of 10,471 K.^[6]

References

^ ^a ^b ^c ^d ^e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
^ ^a ^b ^c ^d Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. S2CID 119257644.
^ ^a ^b Cowley, A.; et al. (April 1969). "A study of the bright A stars. I. A catalogue of spectral classifications". Astronomical Journal. 74: 375–406. Bibcode:1969AJ.....74..375C. doi:10.1086/110819.
^ Gutierrez-Moreno, Adelina; et al. (1966). "A System of photometric standards". Publications of the Department of Astronomy University of Chile. 1. Publicaciones Universidad de Chile, Department de Astronomy: 1–17. Bibcode:1966PDAUC...1....1G.
^ ^a ^b Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Zorec, J.; et al. (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. S2CID 55586789.
^ ^a ^b Pasinetti Fracassini, L. E.; Pastori, L.; Covino, S.; Pozzi, A. (February 2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)". Astronomy and Astrophysics. 367 (Third ed.): 521–524. arXiv:astro-ph/0012289. Bibcode:2001A&A...367..521P. doi:10.1051/0004-6361:20000451. S2CID 425754.
^ ^a ^b Huang, W.; et al. (2010). "A Stellar Rotation Census of B Stars: From ZAMS to TAMS". The Astrophysical Journal. 722 (1): 605–619. arXiv:1008.1761. Bibcode:2010ApJ...722..605H. doi:10.1088/0004-637X/722/1/605. S2CID 118532653.
^ ^a ^b "35 Psc". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-03-24.
^ Samus, N. N.; et al. (2017). "General Catalogue of Variable Stars". Astronomy Reports. 5.1. 61 (1): 80–88. Bibcode:2017ARep...61...80S. doi:10.1134/S1063772917010085. S2CID 125853869.

External links

sky-map

Constellation of Pisces

Stars

Bayer	α (Alrescha) β (Fumalsamakah) γ δ ε ζ (Revati) η (Alpherg) θ ι κ λ μ ν ξ ο (Torcular) π ρ σ τ υ φ χ ψ¹ ψ² ψ³ ω
Flamsteed	1 2 3 5 (A) 7 (b) 9 11 12 13 14 15 16 20 21 22 24 25 26 27 29 30 31 32 (c) 33 34 35 36 37 38 39 40 41 (d) 42 43 44 45 46 47 48 49 51 52 53 54 55 57 58 59 60 61 62 64 65 (i) 66 67 (k) 68 (h) 70 72 73 75 76 77 78 80 (e) 82 (g) 87 88 89 (f) 91 (l) 92 94 95 96 97 100 101 103 104 105 107 109 112 4 Cet 5 Cet
Variable	RZ SZ TX (19) UV VY (3 Ari) VZ ZZ AR BR DV GU
HR	2 107 222 8734
HD	1502 (Citadelle) 3167 4203 4313 8574 (Bélénos) 9986 217107 217786 218566 (Ebla)
Other	Gliese 12 Gliese 900 GJ 9827 2MASS 0036+1821 NGC 33 NGC 46 NGC 316 NGC 400 NGC 401 NGC 402 NGC 408 NGC 552 NGC 730 SIMP J013656.5+093347 van Maanen 2 WASP-32 (Parumleo) WASP-76

Exoplanets	HD 1502 b (Indépendance) HD 3167 b HD 4203 b c HD 4313 b HD 8574 b (Bélisama) HD 217107 b c HD 217786 b c HD 218566 b (Ugarit) γ Piscium b GU Piscium b 54 Piscium b WASP-76b

Galaxies

Messier	74
NGC	3 12 36 38 57 60 63 75 78 95 99 100 105 106 125 126 127 128 130 137 138 139 141 164 180 182 186 190 193 194 198 199 200 202 203 204 208 213 234 236 240 250 251 257 266 282 287 296 311 313 315 316 318 326 332 338 354 370 372 373 374 375 379 380 382 383 384 385 386 387 388 390 392 394 396 397 398 399 400 401 403 407 410 414 420 437 443 444 446 447 449 452 455 459 462 463 467 468 469 470 471 472 473 474 475 476 479 483 485 486 488 489 490 492 493 494 495 496 498 499 500 501 502 503 504 505 506 507 508 509 511 514 515 516 517 518 520 522 524 525 532 553 575 606 645 656 660 664 665 676 706 741 766 7459 7499 7501 7503 7537 7541 7544 7583 7603 7679 7682 7714 7716 7816 7835 7837 7838 7840
Other	3C 459 Andromeda II Andromeda XXII IC 64 IC 1481 I Zwicky 1 KIDS J232940-34092 Pisces A Pisces B Pisces Dwarf UGC 224 UGC 477 UGC 717 UGC 934