SDSS J004850.54+293317.8

All names: Gaia EDR3 311977593929900928, Gaia DR2 311977593929900928, SDSS J004850.54+293317.8, GALEX J004850.5+293319, SDSS J004850.54+293317.88, Gaia DR3 311977593929900928

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Kepler et al. 2016 Simbad Vincent et al. 2023
Right ascension 00 48 50.55 (0.5) 00 48 50.54 00 48 50.55 (1) 00 48 50.53 (0.5)
Declination 29 33 17.84 (0.3) 29 33 17.89 29 33 17.84 (0.5) 29 33 17.97 (0.3)
Spectral type DA DA DA DA
Effective temperature [K] 7149.0 7534.0 (97)
log(g) [cgs] 7.59 7.88 (0.1)
Mass [M] 0.379 0.476 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 0.8790
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] 4.15 (0.6) 3.49 (1) 4.15 (0.6)
Distance [pc] 240.86 (38) 286.93 (87) 240.87 (38)
Composition H
Proper motion (right ascension) [mas/yr] 13.6988197 (0.7) 13.44517764 (2) 13.699 (0.7)
Proper motion (declination) [mas/yr] -8.089309191 (0.4) -6.679500462 (1) -8.089 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.95 (0.07) 20.93 (0.07) 20.93 (0.07)
g magnitude 20.26 (0.02) 20.25 (0.02) 20.25 (0.02)
r magnitude 20.11 (0.02) 20.09 (0.03) 20.09 (0.03)
i magnitude 20.08 (0.03) 20.06 (0.03) 20.06 (0.03)
z magnitude 20.25 (0.1) 20.22 (0.1) 20.22 (0.1)
G magnitude 20.11 (0.07) 20.19 20.11 (0.005)
BP magnitude 20.24 (0.07) 20.31
RP magnitude 19.80 (0.07) 19.94
Pan g magnitude 20.30 (0.04)
Pan r magnitude 20.10 (0.02)
Pan i magnitude 20.10 (0.02)
Pan z magnitude 20.19 (0.03)
Pan y magnitude 20.13 (0.1)
E(B-V) 0.040

* 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.