SDSS J225123.67+293945.4

All names: WDJ225123.02+293944.49, WIRED J225123.66+293945.4, SDSS J225123.67+293945.4, PSO J225124.307+293946.296, Gaia DR2 1884756203536481280

Parameter Unit MWDD H Pan-STARRS DR1 Gaia DR2 SDSS DR12 Simbad Gentile Fusillo et al. 2018 Kleinman et al. 2013
Right ascension 22 51 24.51 (0.08) 22 51 23.67 22 51 23.67 22 51 24.51 22 51 23.67
Declination 29 39 46.58 (0.09) 29 39 45.39 29 39 45.42 29 39 46.58 29 39 45.42
Spectral type DAH: DAH: DAH:
Effective temperature [K] 5647.0 6300.0 (2)
log(g) [cgs] 7.70 9.32 (0.04)
Mass [M] 0.424
log(Luminosity) [L]
Cooling age [Gyr] 1.7330
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] 51.47 (0.1) 51.47 (0.1)
Distance [pc] 19.43 (0.05) 19.43 (0.05)
Composition H
Proper motion (right ascension) [mas/yr] 1250.14844 (0.2) 1250.14844
Proper motion (declination) [mas/yr] 135.1970993 (0.2) 135.1970993
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.81 (0.007) 16.79 16.81 (0.007) 16.79 (0.01)
g magnitude 15.78 (0.004) 15.78 15.78 (0.004) 15.78 (0.01)
r magnitude 15.32 (0.004) 15.31 15.32 (0.004) 15.31 (0.01)
i magnitude 15.15 (0.004) 15.15 15.15 (0.004) 15.15 (0.01)
z magnitude 15.10 (0.005) 15.11 15.10 (0.005) 15.11 (0.01)
G magnitude 15.35 15.35
BP magnitude 15.70 15.70
RP magnitude 14.83 14.83
Pan g magnitude 15.73 (0.002)
Pan r magnitude 15.34 (0.003)
Pan i magnitude 15.15 (0.002)
Pan z magnitude 15.13 (0.003)
Pan y magnitude 15.12 (0.004)

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.