NR Vulpeculae

NR Vulpeculae

The visual band light curve for NR Vulpeculae, plotted from ASAS-SN data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Vulpecula
Right ascension 19h 50m 11.928s[2]
Declination 24° 55′ 24.18″[2]
Apparent magnitude (V) 9.13 - 9.61[3]
Characteristics
Evolutionary stage red supergiant[4]
Spectral type M1Ia[3] or K3I[4]
Variable type LC[3]
Astrometry
Radial velocity (Rv)11.58±0.33[2] km/s
Proper motion (μ) RA: −2.023±0.016 mas/yr[2]
Dec.: −6.024±0.023 mas/yr[2]
Parallax (π)0.3225 ± 0.0251 mas[2]
Distance8,844+711
−538 ly
(2,713+218
−165 pc)[5]
Details
Mass23[4][a] M☉
Radius923+62
−50[6] R☉
Luminosity197,000[7] L☉
Surface gravity (log g)−0.20[4] cgs
Temperature3,986[7] K
Metallicity [Fe/H]+0.093[8] dex
Other designations
NR Vulpeculae, TYC 2144-1244-1, GSC 02144-01244, IRC+20438, 2MASS J19501193+2455240, IRAS 19480+2447, AAVSO 1946+24, BD+24 3902, HD 339034, RAFGL 2462, UCAC2 40577951
Database references
SIMBADdata

NR Vulpeculae is a red supergiant and irregular variable star in the constellation Vulpecula. It has an apparent magnitude varying between 9.13 and 9.61, which is too faint to be seen to the naked eye.

  1. ^ Cite error: The named reference ASAS-SN was invoked but never defined (see the help page).
  2. ^ a b c d e Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. ^ a b c Cite error: The named reference gcvs1 was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference levesqueetal2005 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference b-j was invoked but never defined (see the help page).
  6. ^ Ryan Norris. "Student Science at NMT: Learning Optical Interferometry Through Projects on Evolved Stars" (PDF). CHARA.
  7. ^ a b Healy, Sarah; Horiuchi, Shunsaku; Molla, Marta Colomer; Milisavljevic, Dan; Tseng, Jeff; Bergin, Faith; Weil, Kathryn; Tanaka, Masaomi (2024-03-23). "Red Supergiant Candidates for Multimessenger Monitoring of the Next Galactic Supernova". Monthly Notices of the Royal Astronomical Society. 529 (4): 3630–3650. arXiv:2307.08785. Bibcode:2024MNRAS.529.3630H. doi:10.1093/mnras/stae738. ISSN 0035-8711.
  8. ^ Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevič, G.; Monari, G.; Cantat-Gaudin, T.; Weiler, M.; Khan, S.; Miglio, A.; Carrillo, I.; Romero-Gómez, M.; Minchev, I.; De Jong, R. S.; Antoja, T.; Ramos, P.; Steinmetz, M.; Enke, H. (2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy and Astrophysics. 628: A94. arXiv:1904.11302. Bibcode:2019A&A...628A..94A. doi:10.1051/0004-6361/201935765. S2CID 131780028.


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