All names: Gaia EDR3 2250575271265017088, PM J20235+7001, Gaia DR3 2250575271265017088, 20235+7001, Gaia DR2 2250575271265017088, LSPM J2023+7001, USNO-B1.0 1600-00136382
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad |
---|---|---|---|---|---|---|---|---|---|
Right ascension | 20 23 29.11 (0.1) | 20 23 29.14 (0.1) | 20 23 29.11 | 20 23 29.97 (0.1) | |||||
Declination | 70 01 51.11 (0.1) | 70 01 51.20 (0.2) | 70 01 51.11 | 70 01 54.12 (0.1) | |||||
Spectral type | DA | DA | DA | DA | |||||
Effective temperature | [K] | 7115.0 | 7250.0 (134) | 7361.0 (198) | |||||
log(g) | [cgs] | 7.88 | 8.15 (0.2) | 7.98 (0.05) | |||||
Mass | [M☉] | 0.521 | 0.69 (0.1) | 0.581 (0.04) | |||||
log(Luminosity) | [L☉] | -3.48 | |||||||
Cooling age | [Gyr] | 1.2220 | |||||||
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] | 8.54 (0.1) | 8.57 (0.2) | 8.54 | 8.54 (0.1) | ||||
Distance | [pc] | 117.08 (2) | 116.63 (2) | 100.40 (6) | 117.08 | 117.08 (2) | |||
Composition | H | H | |||||||
Proper motion (right ascension) | [mas/yr] | -273.9741583 (0.1) | -274.0353775 (0.3) | -273.974 (0.1) | |||||
Proper motion (declination) | [mas/yr] | -187.8569586 (0.2) | -187.8144112 (0.5) | -187.857 (0.2) | |||||
Variability | |||||||||
Magnetic | |||||||||
Bd | [MG] | ||||||||
Infrared excess (disk) | |||||||||
Binarity | |||||||||
B magnitude | 19.10 | ||||||||
V magnitude | |||||||||
R magnitude | 17.90 | ||||||||
I magnitude | |||||||||
J magnitude | |||||||||
H magnitude | |||||||||
K magnitude | |||||||||
u magnitude | |||||||||
g magnitude | |||||||||
r magnitude | |||||||||
i magnitude | |||||||||
z magnitude | |||||||||
G magnitude | 18.54 (0.02) | 18.56 | 18.54 | 18.54 (0.003) | |||||
BP magnitude | 18.76 (0.02) | 18.68 | |||||||
RP magnitude | 18.30 (0.03) | 18.19 | |||||||
Pan g magnitude | 18.72 (0.008) | ||||||||
Pan r magnitude | 18.56 (0.02) | ||||||||
Pan i magnitude | 18.51 (0.02) | ||||||||
Pan z magnitude | 18.58 (0.02) | ||||||||
Pan y magnitude | 18.67 (0.03) | ||||||||
E(B-V) | 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 (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.