SDSS J014523.66+234239.3

All names: SDSS J014523.66+234239.4, GALEX J014523.6+234239, SDSS J014523.66+234239.31, Gaia DR2 291116731613781504, Gaia EDR3 291116731613781504, Gaia DR3 291116731613781504, SDSS J014523.66+234239.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 01 45 23.66 (0.2) 01 45 23.66 01 45 23.66 (0.3) 01 45 23.66 01 45 23.66 (0.2)
Declination 23 42 39.28 (0.2) 23 42 39.43 23 42 39.29 (0.2) 23 42 39.28 23 42 39.40 (0.2)
Spectral type DA DA DA DA DA DA
Effective temperature [K] 31200.0 (246) 13669.0 31583.0 (151) 21611.0 (2009)
log(g) [cgs] 8.36 (0.06) 7.31 8.66 (0.04) 7.84 (0.1)
Mass [M☉] 0.86 (0.04) 0.308 1.007 (0.02) 0.541 (0.09)
log(Luminosity) [L☉] -1.06 (0.04)
Cooling age [Gyr] 0.0182 (0.005) 0.1233
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] 2.53 (0.2) 2.34 (0.4) 2.53 2.53 (0.2)
Distance [pc] 395.93 (35) 427.19 (65) 395.93 395.93 (35)
Composition H H
Proper motion (right ascension) [mas/yr] -2.183226864 (0.2) -1.512420784 (0.5) -2.183 (0.2)
Proper motion (declination) [mas/yr] -7.577402354 (0.2) -7.478446285 (0.4) -7.577 (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 18.36 (0.02) 18.36 (0.03) 18.36 (0.02)
g magnitude 18.48 (0.007) 18.53 (0.02) 18.48 (0.007)
r magnitude 18.79 (0.01) 18.83 (0.03) 18.80 (0.01)
i magnitude 19.05 (0.02) 19.09 (0.03) 19.05 (0.02)
z magnitude 19.30 (0.07) 19.36 (0.07) 19.30 (0.07)
G magnitude 18.62 (0.03) 18.66 18.62 18.62 (0.004)
BP magnitude 18.58 (0.03) 18.53
RP magnitude 18.78 (0.04) 18.77
Pan g magnitude 18.53 (0.007)
Pan r magnitude 18.80 (0.01)
Pan i magnitude 19.05 (0.01)
Pan z magnitude 19.29 (0.02)
Pan y magnitude 19.46 (0.04)
E(B-V) 0.066

* 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.