SDSS J124422.97+284403.4

All names: GALEX J124422.9+284403, SDSS J124422.97+284403.4, Gaia EDR3 3962937702357496192, SDSS J124422.97+284403.3, Gaia DR2 3962937702357496192, SDSS J124422.96+284403.3, Gaia DR3 3962937702357496192

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 44 22.97 (0.4) 12 44 22.97 12 44 22.97 (0.5) 12 44 22.97 (0.4) 12 44 22.97
Declination 28 44 02.84 (0.3) 28 44 03.37 28 44 02.87 (0.3) 28 44 03.57 (0.3) 28 44 03.38
Spectral type DA DA DA DA
Effective temperature [K] 9157.0 9898.0 (163)
log(g) [cgs] 7.86 8.59 (0.2)
Mass [M] 0.517
log(Luminosity) [L]
Cooling age [Gyr] 0.6314
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] 3.28 (0.4) 3.18 (0.5) 3.28 (0.4)
Distance [pc] 305.12 (41) 313.97 (54) 305.12 (41)
Composition H
Proper motion (right ascension) [mas/yr] -6.734661234 (0.4) -6.684952288 (0.8) -6.735 (0.4)
Proper motion (declination) [mas/yr] -45.70956558 (0.5) -45.88047347 (0.5) -45.71 (0.5)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.13 (0.05) 20.13 (0.05) 20.14 (0.05)
g magnitude 19.82 (0.02) 19.82 (0.02) 19.83 (0.03)
r magnitude 19.87 (0.02) 19.87 (0.02) 19.91 (0.03)
i magnitude 19.92 (0.03) 19.92 (0.03) 19.96 (0.03)
z magnitude 20.31 (0.2) 20.32 (0.2) 20.33 (0.1)
G magnitude 19.76 (0.06) 19.80 19.76 (0.005)
BP magnitude 19.85 (0.06) 19.83
RP magnitude 19.57 (0.06) 19.66
Pan g magnitude 19.77 (0.01)
Pan r magnitude 19.84 (0.01)
Pan i magnitude 19.94 (0.03)
Pan z magnitude 20.15 (0.05)
Pan y magnitude 20.09 (0.03)
E(B-V) 0.013

* 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.