WD 2121-070

All names: Gaia DR3 6898238203506724352, Gaia EDR3 6898238203506724352, GALEX J212425.7-064837, Gaia DR2 6898238203506724352, SDSS J212425.74-064837.1, SDSS J212425.74-064837.2, WD 2121-070

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 21 24 25.75 (0.4) 21 24 25.74 21 24 25.75 (0.5) 21 24 25.75 (0.4) 21 24 25.74 21 24 24.91 21 24 25.74 21 24 25.74
Declination -06 48 37.19 (0.4) -06 48 37.13 -06 48 37.19 (0.7) -06 48 37.18 (0.4) -06 48 37.14 -06 48 33.48 -06 48 37.14 -06 48 37.15
Spectral type DA DA DA DA3.2 DAH DA
Effective temperature [K] 15123.0 16481.0 (464) 16822.0 (399) 15804.0 (411)
log(g) [cgs] 8.91 8.87 (0.1) 8.98 (0.06) 8.82 (0.1)
Mass [M] 1.159
log(Luminosity) [L]
Cooling age [Gyr] 0.9961
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] 4.11 (0.5) 4.39 (0.6) 4.11 (0.5)
Distance [pc] 243.53 (28) 227.89 (31) 243.53 (28)
Composition H
Proper motion (right ascension) [mas/yr] 1.827714996 (0.5) 5.319963237 (1) 1.828 (0.5) 5.7 5.0
Proper motion (declination) [mas/yr] -0.497495001 (0.5) 0.753110837 (1) -0.497 (0.5) -7.1 -7.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.62 (0.03) 19.62 (0.03) 19.62 (0.04) 19.64 19.63 (0.04) 19.64 (0.04)
g magnitude 19.50 (0.01) 19.50 (0.01) 19.52 (0.01) 19.52 19.51 (0.02) 19.52 (0.02)
r magnitude 19.73 (0.02) 19.73 (0.02) 19.75 (0.02) 19.75 19.74 (0.02) 19.75 (0.02)
i magnitude 20.03 (0.03) 20.03 (0.03) 20.03 (0.03) 20.04 20.03 (0.03) 20.04 (0.03)
z magnitude 20.32 (0.2) 20.32 (0.2) 20.23 (0.1) 20.23 20.21 (0.1) 20.23 (0.1)
G magnitude 19.65 (0.05) 19.72 19.65 (0.005)
BP magnitude 19.71 (0.05) 19.45
RP magnitude 19.80 (0.1) 19.44
Pan g magnitude 19.55 (0.009)
Pan r magnitude 19.76 (0.01)
Pan i magnitude 20.05 (0.01)
Pan z magnitude 20.27 (0.03)
Pan y magnitude 20.39 (0.2)
E(B-V) 0.022

* 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.