All names: SDSS J135210.12-015836.3, SDSS J135210.12-015836.2, 2QZ J135210.1-015836, PSO J135210.118-015836.373, Gaia DR2 3658642739769543808, SDSS J135210.12-015836.23
Parameter | Unit | MWDD H | MWDD HE | Pan-STARRS DR1 | Gaia DR2 | Kepler et al. 2015 | SDSS DR10 | Simbad |
---|---|---|---|---|---|---|---|---|
Right ascension | 13 52 10.11 (0.5) | 13 52 10.12 | 13 52 10.12 | |||||
Declination | -01 58 36.38 (0.4) | -01 58 36.35 | -01 58 36.35 | |||||
Spectral type | He-sdB | He-sdB | He-sdB | sdBHe | ||||
Effective temperature | [K] | 12121.0 | 14224.0 | 13132.0 (96) | ||||
log(g) | [cgs] | 6.48 | 6.72 | 7.03 (0.04) | ||||
Mass | [M☉] | 0.14800000000000002 | 0.18100000000000002 | |||||
log(Luminosity) | [L☉] | |||||||
Cooling age | [Gyr] | 0.0639 | 0.0745 | |||||
log(H/He) | ||||||||
log(C/He) | ||||||||
log(Ca/He) | ||||||||
log(Ca/H) | ||||||||
Parallax | [mas] | 1.20 (0.6) | ||||||
Distance | [pc] | 830.03 (428) | ||||||
Composition | ||||||||
Proper motion (right ascension) | [mas/yr] | -11.7789462137 (0.8) | -6.0 | |||||
Proper motion (declination) | [mas/yr] | -9.5892029605 (0.6) | -6.0 | |||||
Variability | ||||||||
Magnetic | ||||||||
Bd | [MG] | |||||||
Infrared excess (disk) | ||||||||
Binarity | ||||||||
B magnitude | ||||||||
V magnitude | ||||||||
R magnitude | ||||||||
I magnitude | ||||||||
J magnitude | ||||||||
H magnitude | ||||||||
K magnitude | ||||||||
u magnitude | 18.56 (0.06) | 18.54 (0.02) | 18.54 | |||||
g magnitude | 18.87 (0.02) | 18.86 (0.009) | 18.86 | |||||
r magnitude | 19.21 (0.02) | 19.20 (0.01) | 19.20 | |||||
i magnitude | 19.44 (0.03) | 19.45 (0.02) | 19.45 | |||||
z magnitude | 19.50 (0.07) | 19.49 (0.07) | 19.48 | |||||
G magnitude | 19.04 | |||||||
BP magnitude | 18.85 | |||||||
RP magnitude | 19.12 | |||||||
Pan g magnitude | 18.90 (0.008) | |||||||
Pan r magnitude | 19.23 (0.02) | |||||||
Pan i magnitude | 19.47 (0.01) | |||||||
Pan z magnitude | 19.63 (0.01) | |||||||
Pan y magnitude | 19.62 (0.06) |
* 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.