SDSS J234453.64+254501.3

All names: Gaia DR2 2852821869047169536, Gaia EDR3 2852821869047169536, SDSS J234453.64+254501.38, SDSS J234453.64+254501.3, Gaia DR3 2852821869047169536

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2016 Simbad Vincent et al. 2023
Right ascension 23 44 53.62 (0.3) 23 44 53.64 23 44 53.62 (0.6) 23 44 53.66 (0.3)
Declination 25 45 01.28 (0.3) 25 45 01.39 25 45 01.28 (0.4) 25 45 01.47 (0.3)
Spectral type DC: DC: DC: DC DA
Effective temperature [K] 7216.0 7146.0 8092.0 (202)
log(g) [cgs] 6.74 6.52 8.00 (0)
Mass [M] 0.144 0.083
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 2.96 (0.5) 2.08 (0.8) 2.96 (0.5)
Distance [pc] 337.58 (52) 479.64 (174) 337.59 (52)
Composition
Proper motion (right ascension) [mas/yr] -33.2583975 (0.5) -34.73720715 (1) -33.258 (0.5)
Proper motion (declination) [mas/yr] -12.19263044 (0.4) -13.33221832 (0.8) -12.193 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.88 (0.1) 20.86 (0.1) 20.88 (0.1)
g magnitude 20.28 (0.02) 20.29 (0.03) 20.28 (0.02)
r magnitude 20.22 (0.03) 20.22 (0.03) 20.21 (0.03)
i magnitude 20.14 (0.04) 20.14 (0.04) 20.14 (0.04)
z magnitude 20.09 (0.1) 20.07 (0.1) 20.07 (0.1)
G magnitude 20.13 (0.05) 20.18 20.13 (0.005)
BP magnitude 20.27 (0.05) 20.45
RP magnitude 19.99 (0.07) 19.92
Pan g magnitude 20.28 (0.02)
Pan r magnitude 20.17 (0.02)
Pan i magnitude 20.17 (0.02)
Pan z magnitude 20.19 (0.02)
Pan y magnitude 20.08 (0.1)
E(B-V) 0.058

* 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.