2MASS J12212103+3306350

All names: PSO J185.3374+33.1098, Gaia DR3 4016670251491467520, WDJ122121.00+330634.60, Gaia EDR3 4016670251491467520, 2MASS J12212103+3306350, TIC 357231227, SDSS J122120.99+330634.9, GALEX J122121.0+330634, SDSS J122121.00+330635.0, SDSS J122121.00+330634.9, J1221+3306, Gaia DR2 4016670251491467520

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 Blouin et al. 2019 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 21 21.00 (0.1) 12 21 21.00 12 21 21.00 (0.1) 12 21 21.00 12 21 21.00 (0.1) 12 21 21.00 12 21 21.00
Declination 33 06 35.72 (0.08) 33 06 34.94 33 06 35.69 (0.09) 33 06 35.72 33 06 34.59 (0.08) 33 06 35.69 33 06 34.96
Spectral type DA DA DA DA DA DA DA DA DA
Effective temperature [K] 7718.0 (90) 7783.0 (74) 7716.0 (90) 7590.0 (100) 7637.0 7764.0 (157) 7678.0 (40)
log(g) [cgs] 7.95 (0.02) 7.99 (0.02) 7.96 (0.02) 7.94 (0.04) 7.94 7.96 (0.04) 7.99 (0.07)
Mass [M] 0.564 (0.02) 0.587 (0.02) 0.573 (0.02) 0.556 (0.02) 0.56 0.573 (0.03) 0.589 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 1.1800 1.1280 (0.07) 1.1220
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] 10.74 (0.1) 10.86 (0.1) 10.86 (0.1) 10.86 (0.1) 10.74 10.74 (0.1) 10.86 (0.1)
Distance [pc] 93.08 (0.9) 92.08 (1) 92.09 (1) 92.09 (1) 93.08 93.08 (0.9) 92.09 (1)
Composition H H H H
Proper motion (right ascension) [mas/yr] -5.000063357 (0.1) -5.242166936 (0.2) -5.0 (0.1) -5.242166936
Proper motion (declination) [mas/yr] 70.54262658 (0.1) 70.3823549 (0.2) 70.543 (0.1) 70.3823549
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.38 (0.03) 16.71 (0.1) 16.71 (0.1)
H magnitude
K magnitude
u magnitude 18.42 (0.02) 18.43 (0.02) 18.42 (0.02) 18.42 (0.02) 18.43 (0.03)
g magnitude 17.97 (0.006) 17.98 (0.006) 17.97 (0.006) 18.01 (0.03)
r magnitude 17.88 (0.006) 17.89 (0.005) 17.88 (0.006) 17.90 (0.02)
i magnitude 17.88 (0.008) 17.91 (0.007) 17.88 (0.008) 17.88 (0.02)
z magnitude 17.93 (0.02) 17.99 (0.009) 17.93 (0.02) 17.96 (0.02)
G magnitude 17.83 (0.01) 17.86 17.83 17.83 (0.003) 17.86
BP magnitude 18.02 (0.01) 17.98 17.98
RP magnitude 17.61 (0.01) 17.60 17.60
Pan g magnitude 17.99 (0.01) 17.99 (0.02) 17.99 (0.01)
Pan r magnitude 17.89 (0.005) 17.89 (0.005) 17.89 (0.005)
Pan i magnitude 17.91 (0.007) 17.91 (0.007) 17.91 (0.007)
Pan z magnitude 17.99 (0.008) 17.99 (0.009) 17.99 (0.009)
Pan y magnitude 18.03 (0.01) 18.03 (0.01) 18.03 (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.