Back Nova Ophiuchi 1919 AST V849 Ophiuchi German Nova Ophiuchi 1919 Spanish Nova Ophiuchi 1919 Basque وی۸۴۹ مارافسای Persian V849 Ophiuchi French Nova Ophiuchi 1919 Romanian V849 Ophiuchi Swedish 蛇夫座V849 Chinese

V849 Ophiuchi

V849 Ophiuchi
Location of V849 Ophiuchi (circled in red)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ophiuchus
Right ascension 18h 14m 07.3048s[1]
Declination +11° 36′ 42.1398″[1]
Apparent magnitude (V) 7.6 Max.
18.8 Min.[2]
Characteristics
Variable type Nova[2]
Astrometry
Proper motion (μ) RA: −1.515±0.325[1] mas/yr
Dec.: −6.910±0.336[1] mas/yr
Parallax (π)0.1531 ± 0.2000 mas[1]
Distance2643+1531
−445[2] pc
Other designations
Nova Oph 1919, AAVSO 1809+11, HD 167276[3]
Database references
SIMBADdata
A visual band light curve for a 26 June 1992 eclipse of V849 Ophiuchi. Adapted from Shafter et al. (1993)[4]

V849 Ophiuchi or Nova Ophiuchi 1919 was a nova that erupted in 1919, in the constellation Ophiuchus, and reached a blue band brightness of magnitude 7.2.[4] Joanna C. S. Mackie discovered the star while she was examining Harvard College Observatory photographic plates. The earliest plate it was visible on was exposed on August 20, 1919, when the star was at magnitude 9.4. It reached magnitude 7.5 on September 13 of that year.[5][6] In its quiescent state it has a visual magnitude of about 18.8.[7] V849 Ophiuchi is classified as a "slow nova"; it took six months for it to fade by three magnitudes.[4]

All novae are binary stars, and V849 is an eclipsing binary.[4] Its orbital period is 4.146128 hours.[8]

  1. ^ a b c d e Cite error: The named reference Gaia DR2 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference Schaefer2018 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Simbad was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference Shafter was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Bailey was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Crimson was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Strope was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference IVSI was invoked but never defined (see the help page).

Rich TVX News Network Site

Rich TVX News Network Info

© MMXXIII Rich X Search. We shall prevail. All rights reserved. Rich X Search