All names: WDS J09452+2327A, EGGR 533, WDJ094507.90+232723.59, TIC 87958259, J0945+2327, ** LDS 5705A, Gaia EDR3 641625576666483584, USNO-B1.0 1134-00174937, 2MASS J09450793+2327243, WD 0942+23, WD 0942+236.1, LB 11089, SDSS J094507.83+232723.0, SDSS J094507.83+232723.1, NLTT 22492, GALEX J094507.8+232722, LP 370-50, Gaia DR2 641625576666483584, Gaia DR3 641625576666483584
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | Kilic et al. 2020 | Gaia DR2 | Bedard et al. 2017 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 45 07.68 (0.07) | 09 45 07.68 (0.1) | 09 45 07.68 | 09 45 07.90 (0.07) | 09 45 07.68 | 09 45 08.06 | |||||||
| Declination | 23 27 21.94 (0.07) | 23 27 22.00 (0.1) | 23 27 21.94 | 23 27 23.58 (0.07) | 23 27 22.00 | 23 27 28.08 | |||||||
| Spectral type | DA | DA | DA | DA | DA | DA7 | DA7 | ||||||
| Effective temperature | [K] | 7197.0 (31) | 7311.0 (37) | 7125.0 (109) | 7240.0 (111) | 7329.0 (56) | |||||||
| log(g) | [cgs] | 7.99 (0.01) | 8.02 (0.01) | 7.80 (0.1) | 7.90 (0.09) | 8.02 (0.01) | |||||||
| Mass | [M☉] | 0.583 (0.01) | 0.603 (0.01) | 0.54 (0.05) | 0.603 (0.01) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 1.4300 | |||||||||||
| 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] | 16.06 (0.08) | 16.08 (0.1) | 16.08 (0.1) | 16.06 | 16.06 (0.08) | 16.08 (0.1) | 21.30 (53) | |||||
| Distance | [pc] | 62.27 (0.3) | 62.19 (0.5) | 62.18 (0.5) | 46.50 (9) | 63.00 | 62.27 | 62.27 (0.3) | 62.18 (0.5) | 46.95 (117) | |||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -190.6499467 (0.09) | -190.4661865 (0.2) | -190.65 (0.09) | -190.4661865 | ||||||||
| Proper motion (declination) | [mas/yr] | -102.511893 (0.08) | -102.7912585 (0.2) | -102.512 (0.08) | -102.7912585 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 17.30 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 17.30 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 16.67 (0.01) | 16.64 (0.1) | |||||||||||
| H magnitude | 16.32 (0.2) | 16.32 (0.2) | |||||||||||
| K magnitude | 16.03 (0.2) | 16.03 (0.2) | |||||||||||
| u magnitude | 17.99 (0.01) | 17.98 (0.01) | 17.98 (0.01) | ||||||||||
| g magnitude | 17.50 (0.005) | 17.50 (0.005) | |||||||||||
| r magnitude | 17.28 (0.005) | 17.28 (0.005) | |||||||||||
| i magnitude | 17.27 (0.006) | 17.27 (0.006) | |||||||||||
| z magnitude | 17.29 (0.01) | 17.29 (0.01) | |||||||||||
| G magnitude | 17.26 (0.006) | 17.28 | 17.26 | 17.26 (0.003) | 17.28 | ||||||||
| BP magnitude | 17.44 (0.006) | 17.43 | 17.43 | ||||||||||
| RP magnitude | 16.95 (0.006) | 16.93 | 16.93 | ||||||||||
| Pan g magnitude | 17.42 (0.004) | 17.42 (0.004) | |||||||||||
| Pan r magnitude | 17.30 (0.003) | 17.30 (0.004) | |||||||||||
| Pan i magnitude | 17.29 (0.009) | 17.29 (0.007) | |||||||||||
| Pan z magnitude | 17.34 (0.003) | 17.34 (0.003) | |||||||||||
| Pan y magnitude | 17.38 (0.01) | 17.38 (0.02) | |||||||||||
| E(B-V) | 0.002 | ||||||||||||
* 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.