SDSS J155614.42+263141.3

All names: Gaia DR2 1220369018188547712, SDSS J155614.42+263141.3, Gaia EDR3 1220369018188547712, GALEX J155614.3+263141, SDSS J155614.42+263141.2, Gaia DR3 1220369018188547712

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 15 56 14.41 (0.1) 15 56 14.42 15 56 14.41 (0.2) 15 56 14.42 15 56 14.43 (0.1) 15 56 14.42
Declination 26 31 41.31 (0.2) 26 31 41.29 26 31 41.31 (0.3) 26 31 41.30 26 31 41.25 (0.2) 26 31 41.30
Spectral type DA+M: DA+M: DA DA DA
Effective temperature [K] 9608.0 16910.0 (448) 17021.0 (259)
log(g) [cgs] 7.25 7.95 (0.1) 7.94 (0.06)
Mass [M☉] 0.274 0.59 (0.06) 0.586 (0.03)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.3271
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] 2.03 (0.3) 2.32 (0.4) 2.03 (0.3)
Distance [pc] 492.36 (69) 430.83 (69) 497.00 (34) 492.37 (69)
Composition H
Proper motion (right ascension) [mas/yr] -12.991342 (0.2) -13.64040065 (0.4) -12.991 (0.2)
Proper motion (declination) [mas/yr] 3.854962419 (0.3) 2.696601765 (0.6) 3.855 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.57 (0.03) 19.64 19.57 (0.03) 19.64 (0.03)
g magnitude 19.26 (0.01) 19.31 19.26 (0.01) 19.31 (0.02)
r magnitude 19.53 (0.02) 19.61 19.53 (0.02) 19.61 (0.02)
i magnitude 19.64 (0.02) 19.74 19.64 (0.02) 19.74 (0.03)
z magnitude 19.74 (0.1) 19.80 19.74 (0.1) 19.80 (0.1)
G magnitude 19.44 (0.03) 19.49 19.44 (0.004)
BP magnitude 19.42 (0.03) 19.34
RP magnitude 19.34 (0.04) 19.29
Pan g magnitude 19.34 (0.01)
Pan r magnitude 19.57 (0.02)
Pan i magnitude 19.76 (0.008)
Pan z magnitude 19.75 (0.03)
Pan y magnitude 19.60 (0.04)
E(B-V) 0.038

* 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.