All names: Gaia DR2 1152976205310754560, SDSS J150003.86+002420.0, PSO J150003.798+002418.692, WD 1457+006, SDSS J150003.86+002419.9, Gaia DR2 1353262629247389312, SDSS J150003.85+002419.8, WD 1458+006
Parameter | Unit | MWDD HE | Pan-STARRS DR1 | Gaia DR2 | Gaia DR2 | Koester & Kepler (2015) | Harris et al. 2003 | SDSS DR12 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 15 00 03.78 (0.3) | 15 00 03.78 (0.3) | 15 00 03.86 | 15 00 03.86 | 15 00 03.86 | 15 00 03.36 | 15 00 03.86 | |||||
Declination | 00 24 18.45 (0.3) | 00 24 18.45 (0.3) | 00 24 19.87 | 00 24 19.85 | 00 24 19.85 | 00 24 19.44 | 00 24 19.97 | |||||
Spectral type | DB4 | DB4 | DB | DB | ? | DB | ||||||
Effective temperature | [K] | 11888.0 | 13926.0 (134) | 15546.0 (240) | 14400.0 (230) | |||||||
log(g) | [cgs] | 8.14 | 8.00 (0) | 8.87 (0.1) | 8.52 (0.1) | |||||||
Mass | [M☉] | 0.6709999999999999 | 0.9109999999999999 (0.09) | |||||||||
log(Luminosity) | [L☉] | |||||||||||
Cooling age | [Gyr] | 0.4894 | ||||||||||
log(H/He) | -5.32 (0) | |||||||||||
log(C/He) | ||||||||||||
log(Ca/He) | -8.04 (0) | |||||||||||
log(Ca/H) | ||||||||||||
log(N/He) | ||||||||||||
log(O/He) | ||||||||||||
log(Na/He) | ||||||||||||
log(Mg/He) | ||||||||||||
log(Al/He) | ||||||||||||
log(Si/He) | ||||||||||||
log(P/He) | ||||||||||||
log(S/He) | ||||||||||||
log(Cl/He) | ||||||||||||
log(Sc/He) | ||||||||||||
log(Ti/He) | ||||||||||||
log(V/He) | ||||||||||||
log(Cr/He) | ||||||||||||
log(Mn/He) | ||||||||||||
log(Fe/He) | ||||||||||||
log(Co/He) | ||||||||||||
log(Ni/He) | ||||||||||||
log(Cu/He) | ||||||||||||
log(Zn/He) | ||||||||||||
log(Ga/He) | ||||||||||||
log(Ge/He) | ||||||||||||
log(Sr/He) | ||||||||||||
Parallax | [mas] | 4.22 (0.4) | 4.22 (0.4) | |||||||||
Distance | [pc] | 237.15 (21) | 237.15 (21) | 289.00 | ||||||||
Composition | He | |||||||||||
Proper motion (right ascension) | [mas/yr] | -71.64938627 (0.5) | -71.649 (0.5) | -8.0 | -73.8 | |||||||
Proper motion (declination) | [mas/yr] | -86.32377822 (0.5) | -86.324 (0.5) | -9.0 | -87.3 | |||||||
Variability | ||||||||||||
Magnetic | ||||||||||||
Bd | [MG] | |||||||||||
Infrared excess (disk) | ||||||||||||
Binarity | ||||||||||||
B magnitude | ||||||||||||
V magnitude | ||||||||||||
R magnitude | ||||||||||||
I magnitude | ||||||||||||
J magnitude | ||||||||||||
H magnitude | ||||||||||||
K magnitude | ||||||||||||
u magnitude | 18.84 | 18.82 (0.02) | 18.84 | 18.85 (0.02) | 18.84 | 18.84 (0.02) | ||||||
g magnitude | 18.80 | 18.79 (0.008) | 18.80 | 18.81 (0.01) | 18.80 | 18.80 (0.01) | ||||||
r magnitude | 19.00 | 19.01 (0.01) | 19.00 | 19.00 (0.01) | 18.99 | 19.00 (0.01) | ||||||
i magnitude | 19.15 | 19.17 (0.01) | 19.16 | 19.15 (0.02) | 19.14 | 19.16 (0.02) | ||||||
z magnitude | 19.45 | 19.48 (0.07) | 19.48 | 19.47 (0.08) | 19.46 | 19.48 (0.08) | ||||||
G magnitude | 18.93 | 18.93 | ||||||||||
BP magnitude | 18.87 | 18.87 | ||||||||||
RP magnitude | 18.94 | 18.94 | ||||||||||
Pan g magnitude | 18.84 (0.006) | |||||||||||
Pan r magnitude | 19.03 (0.008) | |||||||||||
Pan i magnitude | 19.22 (0.008) | |||||||||||
Pan z magnitude | 19.44 (0.02) | |||||||||||
Pan y magnitude | 19.46 (0.03) |
* 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.