SDSS J230924.78+213532.7

All names: SDSS J230924.77+213532.7, SDSS J230924.78+213532.7, Gaia DR3 2838506227653422848, SDSS J230924.78+213532.70, Gaia DR2 2838506227653422848, Gaia EDR3 2838506227654960256

Parameter Unit Gaia EDR3 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) Gaia DR2 Stilism Simbad Kleinman et al. 2013
Right ascension 23 09 24.66 (0.8) 23 09 24.78 23 09 24.78 (2) 23 09 24.78 (0.9) 23 09 24.78
Declination 21 35 33.24 (0.8) 21 35 32.73 21 35 32.68 (1) 21 35 32.96 (0.8) 21 35 32.69
Spectral type DBAZ DBAZ:
Effective temperature [K] 16289.0 18941.0 14924.0 (535)
log(g) [cgs] 8.25 8.52 7.55 (0.3)
Mass [M] 0.744 0.925
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He) <-5.788
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.94 (1) 1.81 (2) 2.03 (1)
Distance [pc] 553.90 (488) 493.22 (353)
Composition
Proper motion (right ascension) [mas/yr] 5.437797192 (1) -1.957722271 (3) -0.549 (1)
Proper motion (declination) [mas/yr] -4.019546765 (1) -16.86962264 (2) -17.856 (1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.96 (0.08) 20.96 (0.08) 20.90 (0.1)
g magnitude 20.64 (0.02) 20.64 (0.02) 20.70 (0.04)
r magnitude 20.79 (0.04) 20.79 (0.04) 20.81 (0.07)
i magnitude 21.13 (0.07) 21.14 (0.07) 21.07 (0.1)
z magnitude 22.83 (0.7) 21.37 (0.4) 21.37 (0.4)
G magnitude 20.72 (0.2) 20.75 20.70 (0.01)
BP magnitude 20.51 (0.2) 20.32
RP magnitude 19.58 (0.1) 19.96
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.052

* 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.