WD 1630+245

All names: Gaia EDR3 1300727345195414272, LP 386-28, Gaia DR2 1300727345195414272, SDSS J163242.24+242655.2, WD 1630+245, NLTT 43048, USNO-B1.0 1144-00240994, LSPM J1632+2426, WDJ163242.24+242656.39, SDSS J163242.23+242655.2, [VV2010] J163242.3+242654, Gaia DR3 1300727345195414272, 1630+245, EGGR 542, J1632+2426

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Caron et al. 2023 Bergeron et al. 2022 Leggett et al. 2018 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 16 32 42.22 (0.09) 16 32 42.24 16 32 42.22 (0.1) 16 32 42.22 16 32 42.24 (0.09) 16 32 42.22 16 32 42.55
Declination 24 26 50.99 (0.1) 24 26 55.22 24 26 51.16 (0.2) 24 26 50.99 24 26 56.37 (0.1) 24 26 51.16 24 27 13.32
Spectral type DC DC DC10.8 DC DC DA: DC DC DA:
Effective temperature [K] 4733.0 (38) 4711.0 (35) 4684.0 (37) 4939.0 4653.0 4984.0 (61)
log(g) [cgs] 8.51 (0.01) 8.50 (0.03) 8.54 8.38 8.55 (0.03)
Mass [M] 0.902 (0.009) 0.899 (0.006) 0.9 (0.03) 0.936 0.815 0.941 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 8.0400 7.4130 7.4420 (0.07) 8.8280 7.6320
log(H/He) -0.53 -0.51
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 23.88 (0.2) 23.77 (0.2) 24.19 (0.5) 23.77 (0.2) 23.88 23.88 (0.2) 23.77 (0.2)
Distance [pc] 41.88 (0.3) 42.07 (0.4) 41.34 (0.9) 42.07 (0.4) 41.88 41.88 (0.3) 42.07 (0.4)
Composition He
Proper motion (right ascension) [mas/yr] -12.8606671 (0.1) -13.42302082 (0.4) -12.861 (0.1) -13.42302082
Proper motion (declination) [mas/yr] -336.6283125 (0.2) -337.3439116 (0.4) -336.628 (0.2) -337.3439116
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 20.30
V magnitude
R magnitude 18.90
I magnitude
J magnitude 17.67 (0.02) 17.67 (0.02)
H magnitude 18.10 (0.02) 18.10 (0.02)
K magnitude 18.04 (0.02) 18.04 (0.02)
u magnitude 21.51 (0.1) 21.33 (0.1) 21.51 (0.1) 21.51 (0.1) 21.33
g magnitude 19.60 (0.01) 19.60 (0.01) 19.60 (0.01) 19.60
r magnitude 18.74 (0.009) 18.73 (0.009) 18.73 (0.009) 18.72
i magnitude 18.49 (0.01) 18.49 (0.01) 18.49 (0.01) 18.49
z magnitude 18.41 (0.03) 18.41 (0.03) 18.41 (0.03) 18.47
G magnitude 18.82 (0.02) 18.84 18.82 18.82 (0.003) 18.84
BP magnitude 19.29 (0.02) 19.31 19.31
RP magnitude 18.20 (0.02) 18.18 18.18
Pan g magnitude 19.50 (0.01) 19.50 (0.02)
Pan r magnitude 18.74 (0.009) 18.74 (0.009)
Pan i magnitude 18.51 (0.006) 18.51 (0.006)
Pan z magnitude 18.49 (0.01) 18.49 (0.01)
Pan y magnitude 18.51 (0.03) 18.51 (0.03)
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.