All names: [SLH2007] J085857.36+320809.6, USNO-A2.0 1200-06196120, SDSS J085857.42+320809.5, [RGS2010] J085857.42+320809.5, SDSS J085857.43+320809.5, WD 0855+323, [HHD2009] SDSS J0858+3208, GALEX 2737108865965363146, 2MASS J08585743+3208097, PSO J085857.432+320809.462, Gaia DR2 712076371899873280
Parameter | Unit | Pan-STARRS DR1 | Gaia DR2 | sdss-wdms.org (29/04/2016) | SDSS DR12 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|
Right ascension | 08 58 57.42 (0.9) | 08 58 57.42 | 08 58 57.43 | 08 58 57.44 | 08 58 56.86 | ||
Declination | 32 08 09.31 (0.6) | 32 08 09.49 | 32 08 09.49 | 32 08 09.71 | 32 08 01.32 | ||
Spectral type | DB+M | DB+M | DB: dM | ||||
Effective temperature | [K] | 16051.0 (10) | |||||
log(g) | [cgs] | 9.00 | |||||
Mass | [M☉] | ||||||
log(Luminosity) | [L☉] | ||||||
Cooling age | [Gyr] | ||||||
log(H/He) | |||||||
log(C/He) | |||||||
log(Ca/He) | |||||||
log(Ca/H) | |||||||
Parallax | [mas] | 4.20 (1) | |||||
Distance | [pc] | 238.34 (75) | 1254.00 (790) | ||||
Composition | |||||||
Proper motion (right ascension) | [mas/yr] | 4.575 (2) | -1.0 | ||||
Proper motion (declination) | [mas/yr] | -8.304 (1) | -2.0 | ||||
Variability | |||||||
Magnetic | |||||||
Bd | [MG] | ||||||
Infrared excess (disk) | |||||||
Binarity | WDMS | ||||||
B magnitude | 18.30 | ||||||
V magnitude | |||||||
R magnitude | 18.30 | ||||||
I magnitude | |||||||
J magnitude | 16.34 | ||||||
H magnitude | 15.73 | ||||||
K magnitude | |||||||
u magnitude | 19.61 | 19.59 (0.03) | 19.60 | 19.61 | |||
g magnitude | 19.43 | 19.40 (0.01) | 19.41 | 19.43 | |||
r magnitude | 19.18 | 19.14 (0.01) | 19.14 | 19.18 | |||
i magnitude | 18.35 | 18.31 (0.009) | 18.31 | 18.35 | |||
z magnitude | 17.63 | 17.62 (0.02) | 17.61 | 17.63 | |||
G magnitude | 19.18 | ||||||
BP magnitude | 19.21 | ||||||
RP magnitude | 17.84 | ||||||
Pan g magnitude | 19.38 (0.01) | ||||||
Pan r magnitude | 19.19 (0.01) | ||||||
Pan i magnitude | 18.30 (0.01) | ||||||
Pan z magnitude | 17.74 (0.005) | ||||||
Pan y magnitude | 17.45 (0.009) |
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.