All names: Gaia EDR3 2822330113802737408, WDJ235750.73+194905.90, Gaia DR2 2822330113802737408, SDSS J235750.85+194908.5, NLTT 58554, 2MASS J23575077+1949068, USNO-B1.0 1098-00605257, LSPM J2357+1949
Parameter | Unit | Gaia EDR3 | Tremblay et al. 2020 | MWDD H | MWDD HE | Pan-STARRS DR1 | Gaia DR2 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|
Right ascension | 23 57 50.93 (0.06) | 23 57 50.93 | 23 57 50.73 (0.08) | 23 57 50.93 | |||||
Declination | 19 49 10.10 (0.05) | 19 49 09.97 | 19 49 05.90 (0.05) | 19 49 09.97 | |||||
Spectral type | DZ | DZ | |||||||
Effective temperature | [K] | 5810.0 (50) | 6640.0 | 6411.0 | |||||
log(g) | [cgs] | 7.89 (0.04) | 8.28 | 8.17 | |||||
Mass | [M☉] | 0.77 | 0.681 | ||||||
log(Luminosity) | [L☉] | ||||||||
Cooling age | [Gyr] | 3.1820 | 2.9540 | ||||||
log(H/He) | |||||||||
log(C/He) | |||||||||
log(Ca/He) | |||||||||
log(Ca/H) | |||||||||
Parallax | [mas] | 24.90 (0.09) | 24.92 (0.1) | 24.92 (0.1) | 24.92 (0.1) | ||||
Distance | [pc] | 40.16 (0.1) | 40.12 (0.2) | 40.12 (0.2) | 40.12 (0.2) | ||||
Composition | |||||||||
Proper motion (right ascension) | [mas/yr] | 176.6197122 (0.09) | 176.8048578 (0.2) | 176.805 (0.2) | 176.8048578 | ||||
Proper motion (declination) | [mas/yr] | 262.5771977 (0.05) | 262.5694256 (0.09) | 262.569 (0.09) | 262.5694256 | ||||
Variability | |||||||||
Magnetic | |||||||||
Bd | [MG] | ||||||||
Infrared excess (disk) | |||||||||
Binarity | |||||||||
B magnitude | 17.80 | ||||||||
V magnitude | |||||||||
R magnitude | 16.70 | ||||||||
I magnitude | |||||||||
J magnitude | 16.36 (0.1) | ||||||||
H magnitude | 16.26 (0.2) | ||||||||
K magnitude | 15.90 (0.3) | ||||||||
u magnitude | 20.16 (0.05) | 20.16 (0.05) | |||||||
g magnitude | 17.43 (0.005) | 17.43 (0.005) | |||||||
r magnitude | 16.89 (0.005) | 16.89 (0.005) | |||||||
i magnitude | 16.93 (0.006) | 16.93 (0.006) | |||||||
z magnitude | 17.04 (0.01) | 17.04 (0.01) | |||||||
G magnitude | 17.06 (0.006) | 17.08 | 17.08 (0.0009) | 17.08 | |||||
BP magnitude | 17.34 (0.006) | 17.38 | 17.38 | ||||||
RP magnitude | 16.62 (0.005) | 16.61 | 16.61 | ||||||
Pan g magnitude | 17.34 (0.003) | ||||||||
Pan r magnitude | 16.92 (0.003) | ||||||||
Pan i magnitude | 16.96 (0.002) | ||||||||
Pan z magnitude | 17.06 (0.005) | ||||||||
Pan y magnitude | 17.11 (0.008) |
* 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 (LANL). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.