All names: SDSS J084623.47+492536.2, Gaia EDR3 1015135144116717056, Gaia DR2 1015135144116717056, Gaia DR3 1015135144116717056, GALEX J084623.5+492535, LSPM J0846+4925E, LP 164-52, SDSS J084623.47+492536.3, ** LDS 3815B, WDS J08463+4926B, NLTT 20180, WD 0842+496, USNO-B1.0 1394-00199142
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|
Right ascension | 08 46 23.66 (0.1) | 08 46 23.66 (0.2) | 08 46 23.66 | 08 46 23.46 (0.1) | 08 46 20.69 | ||||
Declination | 49 25 31.86 (0.1) | 49 25 32.01 (0.2) | 49 25 31.86 | 49 25 36.52 (0.1) | 49 26 00.60 | ||||
Spectral type | DA | DA | DA | DA | |||||
Effective temperature | [K] | 9075.0 | 9177.0 (223) | ||||||
log(g) | [cgs] | 7.48 | 7.36 (0.07) | ||||||
Mass | [M☉] | 0.346 | 0.304 (0.04) | ||||||
log(Luminosity) | [L☉] | ||||||||
Cooling age | [Gyr] | 0.4527 | |||||||
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] | 4.03 (0.2) | 4.37 (0.3) | 4.03 | 4.03 (0.2) | ||||
Distance | [pc] | 248.34 (13) | 229.02 (16) | 248.34 | 248.34 (13) | ||||
Composition | H | ||||||||
Proper motion (right ascension) | [mas/yr] | 125.8376925 (0.2) | 125.8824506 (0.4) | 125.838 (0.2) | |||||
Proper motion (declination) | [mas/yr] | -291.0662909 (0.1) | -290.5308849 (0.3) | -291.066 (0.1) | |||||
Variability | |||||||||
Magnetic | |||||||||
Bd | [MG] | ||||||||
Infrared excess (disk) | |||||||||
Binarity | |||||||||
B magnitude | 18.80 | ||||||||
V magnitude | |||||||||
R magnitude | 18.50 | ||||||||
I magnitude | |||||||||
J magnitude | |||||||||
H magnitude | |||||||||
K magnitude | |||||||||
u magnitude | 19.18 (0.03) | ||||||||
g magnitude | 18.67 (0.008) | ||||||||
r magnitude | 18.65 (0.009) | ||||||||
i magnitude | 18.74 (0.01) | ||||||||
z magnitude | 18.97 (0.07) | ||||||||
G magnitude | 18.58 (0.02) | 18.61 | 18.58 | 18.58 (0.003) | |||||
BP magnitude | 18.67 (0.02) | 18.65 | |||||||
RP magnitude | 18.43 (0.03) | 18.49 | |||||||
Pan g magnitude | 18.61 (0.007) | ||||||||
Pan r magnitude | 18.68 (0.01) | ||||||||
Pan i magnitude | 18.76 (0.01) | ||||||||
Pan z magnitude | 18.91 (0.009) | ||||||||
Pan y magnitude | 18.96 (0.03) | ||||||||
E(B-V) | 0.012 |
* Constant surface field
Spectra without link are available upon request
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.