HS 2148+1631

All names: Gaia EDR3 1772852278044283904, USNO-B1.0 1067-00616796, Gaia DR2 1772852278044283904, GALEX J215114.5+164523, HS 2148+1631, Gaia DR3 1772852278044283904, UCAC4 534-138927, TIC 385057147, WD 2148+165, 2MASS J21511456+1645240

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Koester et al. 2009 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 21 51 14.66 (0.1) 21 51 14.66 (0.1) 21 51 14.66 21 51 14.56 (0.1) 21 51 14.04
Declination 16 45 22.93 (0.09) 16 45 22.95 (0.1) 16 45 22.93 16 45 23.73 (0.09) 16 45 23.40
Spectral type DA DA DA DA
Effective temperature [K] 13804.0 16776.0 (34) 15870.0 (191)
log(g) [cgs] 7.32 7.79 (0.007) 7.65 (0.02)
Mass [M] 0.312 0.438 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.1205
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] 8.85 (0.1) 7.92 (0.1) 8.85 8.85 (0.1)
Distance [pc] 112.97 (2) 126.26 (2) 112.97 112.98 (2)
Composition H
Proper motion (right ascension) [mas/yr] 90.98865404 (0.1) 89.20172728 (0.3) 90.989 (0.1)
Proper motion (declination) [mas/yr] -49.84497782 (0.1) -47.11982263 (0.3) -49.845 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.90 16.06 (0.05)
V magnitude 15.91 (0.03)
R magnitude 15.50
I magnitude
J magnitude 16.38 (0.1)
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.99 (0.003) 16.01 15.99 15.99 (0.003)
BP magnitude 15.95 (0.003) 15.94
RP magnitude 16.10 (0.004) 16.11
Pan g magnitude 15.88 (0.002)
Pan r magnitude 16.15 (0.002)
Pan i magnitude 16.41 (0.003)
Pan z magnitude 16.65 (0.003)
Pan y magnitude 16.80 (0.006)
E(B-V) 0.010

* 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.