All names: LP 027-275, LP 27-275, Gaia DR3 2281284871549777536, Gaia EDR3 2281284871549777536, WDS J23026+7630B, Gaia DR2 2281284871549777536, TIC 428986688, IDS 22597+7558 B, ** LDS 2023B, WD 2301+762, 2MASS J23023807+7630038, BD+75 869B, NLTT 55701, CCDM J23026+7630B, EGGR 454, WDJ230238.04+763003.80, HD 218028B, LSPM J2302+7630N, WD 2301+761
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Tremblay et al. 2017 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 02 38.73 (0.04) | 23 02 38.71 (0.06) | 23 02 38.73 | 23 02 38.04 (0.04) | 23 02 38.71 | 23 02 30.60 | ||||
| Declination | 76 30 04.52 (0.04) | 76 30 04.50 (0.07) | 76 30 04.52 | 76 30 03.80 (0.04) | 76 30 04.50 | 76 30 09.72 | ||||
| Spectral type | DC | DC | DC6 | DC6 | ||||||
| Effective temperature | [K] | 10920.0 (126) | ||||||||
| log(g) | [cgs] | 8.11 (0.02) | ||||||||
| Mass | [M☉] | 0.65 (0.01) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 15.75 (0.04) | 15.73 (0.08) | 15.60 (0.4) | 15.75 | 15.75 (0.04) | 15.73 (0.08) | 15.20 (1) | ||
| Distance | [pc] | 63.48 (0.2) | 63.59 (0.3) | 64.10 (2) | 63.48 | 63.48 (0.2) | 63.59 (0.3) | 65.79 (4) | ||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 150.4127559 (0.05) | 150.4422403 (0.1) | 150.413 (0.05) | 150.4422403 | |||||
| Proper motion (declination) | [mas/yr] | 45.00580299 (0.05) | 44.9778331 (0.1) | 45.006 (0.05) | 44.9778331 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | yes | |||||||||
| B magnitude | 17.10 | |||||||||
| V magnitude | 16.35 (0.05) | 16.70 | ||||||||
| R magnitude | 15.90 | |||||||||
| I magnitude | ||||||||||
| J magnitude | 15.80 (0.1) | |||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.21 (0.003) | 16.23 | 16.21 | 16.21 (0.003) | 16.23 | |||||
| BP magnitude | 16.19 (0.003) | 16.17 | 16.17 | |||||||
| RP magnitude | 16.22 (0.006) | 16.22 | 16.22 | |||||||
| Pan g magnitude | 16.07 (0.02) | |||||||||
| Pan r magnitude | 16.20 (0.01) | |||||||||
| Pan i magnitude | 16.41 (0.03) | |||||||||
| Pan z magnitude | 16.56 (0.01) | |||||||||
| Pan y magnitude | 16.52 (0.06) | |||||||||
| E(B-V) | 0.004 | |||||||||
* 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.