V* V409 Peg

All names: WD2347+128, Gaia EDR3 2769930207121379968, Gaia DR2 2769930207121379968, WD 2347+12, 2MASS J23495344+1306127, V* V409 Peg, USNO-B1.0 1031-00727788, GALEX J234953.5+130614, ** LDS 5128A, LSPM J2349+1306S, WDJ234953.46+130612.92, G 30-20, WDS J23499+1306A, LTT 17020, Gaia DR3 2769930207121379968, 2347+128, TIC 302046553, EGGR 405, G30-20, WD 2347+128, NLTT 58107

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Leggett et al. 2018 MWDD H Gaia DR2 Stilism Gianninas et al. 2011 Koester et al. 2009 Mukadam et al. 2002 Koester et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Research Corporation White Dwarf Catalog (McCook & Sion 1999)
Right ascension 23 49 53.78 (0.03) 23 49 53.77 (0.04) 23 49 53.50 23 49 53.78 23 49 53.46 (0.03) 23 49 53.77 23 49 52.99
Declination 13 06 13.61 (0.03) 13 06 13.59 (0.03) 13 06 13.00 13 06 13.61 13 06 12.92 (0.03) 13 06 13.59 13 06 10.80
Spectral type DA4.6 DA DA DA DA DA4.4 DAV DA5
Effective temperature [K] 11002.0 (299) 10727.0 11470.0 (171) 10874.0 (19) 11150.0 11080.0 (96) 10537.0 (74) 11070.0
log(g) [cgs] 8.03 (0.03) 7.90 8.14 (0.05) 8.00 (0.01) 8.01 8.12 (0.05) 7.88 (0.01) 7.95
Mass [M] 0.622 (0.03) 0.546 0.69 (0.03) 0.68 0.536 (0.008)
log(Luminosity) [L]
Cooling age [Gyr] 0.4900 (0.04) 0.4438
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 14.18 (0.04) 14.93 (0.3) 14.13 (0.06) 14.18 14.18 (0.04) 14.13 (0.06)
Distance [pc] 70.52 (0.2) 66.98 (1) 70.75 (0.3) 61.00 70.52 70.52 (0.2) 70.75 (0.3)
Composition H H
Proper motion (right ascension) [mas/yr] 286.6770004 (0.04) 286.676491 (0.1) 286.677 (0.04) 286.676491
Proper motion (declination) [mas/yr] 43.12459688 (0.03) 43.10223905 (0.06) 43.125 (0.03) 43.10223905
Variability VAR VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.90
V magnitude 16.05 16.10 16.05 15.90
R magnitude 16.30
I magnitude
J magnitude 16.29 (0.09)
H magnitude 16.02 (0.1)
K magnitude
u magnitude 16.47 (0.007)
g magnitude 16.03 (0.005)
r magnitude 16.14 (0.005)
i magnitude 16.32 (0.005)
z magnitude 16.51 (0.009)
G magnitude 16.06 (0.003) 16.08 16.06 16.06 (0.003) 16.08
BP magnitude 16.11 (0.003) 16.11 16.11
RP magnitude 16.03 (0.005) 16.04 16.04
Pan g magnitude 16.02 (0.008)
Pan r magnitude 16.17 (0.004)
Pan i magnitude 16.37 (0.005)
Pan z magnitude 16.52 (0.01)
Pan y magnitude 16.65 (0.004)
E(B-V) 0.005
Period #1 [s] 1068.0
Amplitude #1 [mma] 13.8

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.