SDSS J162125.86+155034.5

All names: SDSS J162125.86+155034.5, GALEX J162125.8+155034, SDSS J162125.86+155034.6, Gaia DR2 4465007353351603072, Gaia EDR3 4465007353351603072, SDSS J162125.86+155034.58, Gaia DR3 4465007353351603072

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 16 21 25.86 (0.3) 16 21 25.86 16 21 25.86 (0.4) 16 21 25.86 (0.3)
Declination 15 50 34.49 (0.2) 15 50 34.66 15 50 34.50 (0.2) 15 50 34.69 (0.2)
Spectral type DA DA DA DA DA
Effective temperature [K] 36811.0 (1117) 25349.0 39068.0 (776)
log(g) [cgs] 7.76 (0.2) 7.58 8.09 (0.1)
Mass [M] 0.55 (0.07) 0.442 0.7040000000000001 (0.05)
log(Luminosity) [L] -0.37 (0.1)
Cooling age [Gyr] 0.0047 (0.0008) 0.0160
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] 0.90 (0.4) 1.09 (0.4) 0.90 (0.4)
Distance [pc] 1106.92 (466) 921.04 (373) 1106.93 (466)
Composition H H
Proper motion (right ascension) [mas/yr] 1.608361809 (0.3) 1.25269352 (0.7) 1.608 (0.3)
Proper motion (declination) [mas/yr] -12.46213802 (0.2) -13.61146556 (0.5) -12.462 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.94 (0.02) 18.93 (0.03) 18.94 (0.02)
g magnitude 19.24 (0.01) 19.24 (0.02) 19.24 (0.01)
r magnitude 19.70 (0.02) 19.70 (0.02) 19.70 (0.02)
i magnitude 20.02 (0.03) 20.01 (0.03) 20.02 (0.03)
z magnitude 20.38 (0.2) 20.35 (0.2) 20.38 (0.2)
G magnitude 19.48 (0.02) 19.52 19.48 (0.003)
BP magnitude 19.41 (0.02) 19.29
RP magnitude 19.80 (0.05) 19.84
Pan g magnitude 19.32 (0.02)
Pan r magnitude 19.74 (0.02)
Pan i magnitude 20.09 (0.02)
Pan z magnitude 20.49 (0.2)
Pan y magnitude 20.30 (0.1)
E(B-V) 0.046

* 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.