AS 314

V452 Scuti

A visual band light curve for V452 Scuti, plotted from OMC data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Scutum
Right ascension 18h 39m 26.10612s[2]
Declination −13° 50′ 47.1892″[2]
Apparent magnitude (V) 9.85[3]
Characteristics
Spectral type Protoplanetary nebula[4]
U−B color index +0.12[3]
B−V color index +0.89[3]
Variable type cLBV[5]
Astrometry
Radial velocity (Rv)−77±8[6] km/s
Proper motion (μ) RA: -4.416[6] mas/yr
Dec.: -6.241[6] mas/yr
Parallax (π)0.5853 ± 0.0141 mas[6]
Distance5,600 ± 100 ly
(1,710 ± 40 pc)
Details
Luminosity3200[4] L☉
Temperature10,200[7] K
Other designations
V452 Sct, BD -13°5061, HIP 91477, 2MASS J18392610-1350470
Database references
SIMBADdata

AS 314, also known as V452 Scuti, is a protoplanetary nebula[4] once believed to be a white hypergiant star or luminous blue variable located in the constellation of Scutum. It has an apparent magnitude of 9.85 and can be seen with small telescopes.

  1. ^ Cite error: The named reference OGLE was invoked but never defined (see the help page).
  2. ^ a b Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.
  3. ^ a b c Kozok, J. R. (1985). "Photometric observations of emission B-stars in the southern Milky Way". Astronomy and Astrophysics Supplement Series. 61: 387. Bibcode:1985A&AS...61..387K.
  4. ^ a b c Groh, Jose H.; Stassun, Keivan G.; Drout, Maria R.; Murphy, Jeremiah W.; Aghakhanloo, Mojgan; Smith, Nathan (2019), "On the Gaia DR2 distances for Galactic luminous blue variables", Monthly Notices of the Royal Astronomical Society, 488 (2): 1760–1778, arXiv:1805.03298, Bibcode:2019MNRAS.488.1760S, doi:10.1093/mnras/stz1712
  5. ^ Nazé, Y.; Rauw, G.; Hutsemékers, D. (2012). "The first X-ray survey of Galactic luminous blue variables". Astronomy & Astrophysics. 538: A47. arXiv:1111.6375. Bibcode:2012A&A...538A..47N. doi:10.1051/0004-6361/201118040. S2CID 43688343.
  6. ^ a b c d Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  7. ^ van Genderen, A.M. (2001). "S Doradus variables in the Galaxy and the Magellanic Clouds". Astronomy & Astrophysics. 366 (2): 508–531. Bibcode:2001A&A...366..508V. doi:10.1051/0004-6361:20000022.