SDSS J120412.97+465509.4

All names: SDSS J120413.01+465509.8, GALEX J120413.1+465510, Gaia DR2 1540109752620999680, SDSS J120413.01+465509.83, Gaia EDR3 1540109752620999680, SDSS J120413.00+465509.8, SDSS J120412.97+465509.4

Parameter Unit Gaia EDR3 SDSS DR12 Gaia DR2 Stilism Kepler et al. 2016 Simbad
Right ascension 12 04 12.95 (0.1) 12 04 13.01 12 04 12.95 (0.2) 12 04 13.01 (10)
Declination 46 55 09.13 (0.2) 46 55 09.83 46 55 09.15 (0.2) 46 55 09.83 (10)
Spectral type DA+M DA
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 3.37 (0.3) 4.01 (0.4)
Distance [pc] 297.17 (24) 249.51 (24)
Composition
Proper motion (right ascension) [mas/yr] -23.05989846 (0.2) -23.52691363 (0.4)
Proper motion (declination) [mas/yr] -33.04496125 (0.2) -33.47481342 (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 19.43 (0.03) 19.51 (0.03) 19.51 (0.03)
g magnitude 19.07 (0.01) 19.17 (0.06) 19.12 (0.01)
r magnitude 18.63 (0.01) 18.78 (0.1) 18.63 (0.01)
i magnitude 18.75 (0.01) 18.97 (0.6) 19.54 (0.02)
z magnitude 18.31 (0.03) 18.47 (0.7) 18.29 (0.03)
G magnitude 19.23 19.26
BP magnitude
RP magnitude
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.016

* 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.