Gaia DR2 3952184341199008384

All names: SDSS J122557.09+211402.0, WDJ122557.03+211402.73, LSPM J1225+2114, Gaia DR2 3952184341199008384, LP 376-65, NLTT 30718, SDSS J122557.10+211402.1, USNO-B1.0 1112-00209950, Gaia DR3 3952184341199008384, Gaia EDR3 3952184341199008384, WDJ122557.03+211402.72

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 12 25 57.23 (0.2) 12 25 57.22 12 25 57.23 12 25 57.04 (0.2) 12 25 57.22
Declination 21 14 00.59 (0.2) 21 14 00.66 21 14 00.59 21 14 02.73 (0.2) 21 14 00.66
Spectral type DA: DA
Effective temperature [K] 4545.0 4228.0 4517.0 (105)
log(g) [cgs] 7.15 6.84 7.29 (0.07)
Mass [M] 0.204 0.124 0.244 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 2.1790
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 12.90 (0.3) 11.85 (0.4) 12.90 12.90 (0.3) 11.85 (0.4)
Distance [pc] 77.53 (2) 84.39 (3) 77.53 77.53 (2) 84.39 (3)
Composition
Proper motion (right ascension) [mas/yr] 168.2580321 (0.3) 170.9661 (0.5) 168.258 (0.3) 170.9661
Proper motion (declination) [mas/yr] -133.8816413 (0.3) -133.6882989 (0.4) -133.882 (0.3) -133.6882989
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 20.50
V magnitude
R magnitude 18.80
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.72 (0.1) 22.07 (0.2)
g magnitude 19.83 (0.01) 19.91 (0.02)
r magnitude 18.95 (0.01) 18.91 (0.01)
i magnitude 18.61 (0.01) 18.60 (0.01)
z magnitude 18.46 (0.02) 18.43 (0.03)
G magnitude 18.98 (0.04) 19.01 18.98 18.98 (0.004) 19.01
BP magnitude 19.60 (0.04) 19.65 19.65
RP magnitude 18.28 (0.02) 18.26 18.26
Pan g magnitude 19.74 (0.02)
Pan r magnitude 18.95 (0.007)
Pan i magnitude 18.62 (0.01)
Pan z magnitude 18.48 (0.009)
Pan y magnitude 18.45 (0.01)
E(B-V) 0.003

* 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.