SDSS J202459.00+755506.4

All names: Gaia EDR3 2290133225733366528, SDSS J202459.00+755506.4, Gaia DR2 2290133225732711424, SDSS J202459.00+755506.3, GALEX J202458.9+755506, Gaia DR3 2290133225733366528

Parameter Unit Gaia EDR3 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 20 24 58.96 (0.2) 20 24 59.01 20 24 58.96 (0.3) 20 24 59.02 (0.2) 20 24 59.00
Declination 75 55 06.26 (0.2) 75 55 06.30 75 55 06.26 (0.3) 75 55 06.36 (0.2) 75 55 06.37
Spectral type DA DA DA DA
Effective temperature [K] 10413.0 28426.0 (721)
log(g) [cgs] 6.78 7.86 (0.1)
Mass [M] 0.183 0.574 (0.06)
log(Luminosity) [L]
Cooling age [Gyr]
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] 1.57 (0.2) 1.50 (0.3) 1.57 (0.2)
Distance [pc] 638.77 (90) 667.01 (155) 638.77 (90)
Composition H
Proper motion (right ascension) [mas/yr] -13.5974347 (0.3) -13.34234183 (0.6) -13.597 (0.3)
Proper motion (declination) [mas/yr] -6.424729759 (0.2) -6.80481352 (0.7) -6.425 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.36 (0.03) 19.36 (0.03) 19.36 (0.04)
g magnitude 19.33 (0.01) 19.33 (0.01) 19.34 (0.01)
r magnitude 19.50 (0.02) 19.50 (0.02) 19.50 (0.02)
i magnitude 19.70 (0.03) 19.70 (0.03) 19.69 (0.03)
z magnitude 19.88 (0.1) 19.88 (0.1) 19.87 (0.1)
G magnitude 19.43 (0.02) 19.47 19.43 (0.004)
BP magnitude 19.45 (0.02) 19.34
RP magnitude 19.46 (0.06) 19.42
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.168

* 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.