All names: Gaia DR3 641625576666484480, 2MASS J09450868+2327315, SDSS J094508.59+232731.2, SDSS J094508.59+232731.1, J0945+2327, USNO-B1.0 1134-00174944, Gaia DR2 641625576666484480, GALEX J094508.5+232731, TIC 87958260, NLTT 22494, EGGR 534, WDJ094508.66+232731.64, WDS J09452+2327B, Gaia EDR3 641625576666484480, ** LDS 5705B, LSPM J0945+2327E, WD 0942+236.2, LP 370-51, LB 11092
| 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 08.44 (0.08) | 09 45 08.45 (0.1) | 09 45 08.44 | 09 45 08.66 (0.08) | 09 45 08.45 | 09 45 08.06 | |||||||
| Declination | 23 27 30.00 (0.07) | 23 27 30.05 (0.1) | 23 27 30.00 | 23 27 31.63 (0.07) | 23 27 30.05 | 23 27 28.08 | |||||||
| Spectral type | DA | DA | DA | DA | DA | DA7.2 | DA7 | ||||||
| Effective temperature | [K] | 6948.0 (34) | 7060.0 (40) | 7019.0 (133) | 6960.0 (121) | 6982.0 (55) | |||||||
| log(g) | [cgs] | 7.98 (0.01) | 8.01 (0.01) | 8.17 (0.1) | 8.21 (0.1) | 7.98 (0.02) | |||||||
| Mass | [M☉] | 0.579 (0.01) | 0.599 (0.01) | 0.72 (0.09) | 0.581 (0.01) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 1.5500 | |||||||||||
| 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] | 15.94 (0.09) | 15.91 (0.1) | 15.91 (0.1) | 15.94 | 15.94 (0.09) | 15.91 (0.1) | 13.60 (64) | |||||
| Distance | [pc] | 62.73 (0.4) | 62.85 (0.6) | 62.87 (0.6) | 46.50 (9) | 52.00 | 62.73 | 62.73 (0.4) | 62.87 (0.6) | 73.53 (346) | |||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -189.7989169 (0.1) | -189.5823284 (0.2) | -189.799 (0.1) | -189.5823284 | ||||||||
| Proper motion (declination) | [mas/yr] | -102.0268118 (0.09) | -102.2489153 (0.2) | -102.027 (0.09) | -102.2489153 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 17.50 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 17.50 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 16.72 (0.02) | 16.78 (0.1) | |||||||||||
| H magnitude | 16.26 (0.2) | 16.26 (0.2) | |||||||||||
| K magnitude | |||||||||||||
| u magnitude | 18.19 (0.01) | 18.18 (0.01) | 18.18 (0.01) | ||||||||||
| g magnitude | 17.70 (0.005) | 17.70 (0.005) | |||||||||||
| r magnitude | 17.42 (0.006) | 17.42 (0.006) | |||||||||||
| i magnitude | 17.39 (0.007) | 17.39 (0.007) | |||||||||||
| z magnitude | 17.39 (0.02) | 17.39 (0.02) | |||||||||||
| G magnitude | 17.41 (0.008) | 17.44 | 17.41 | 17.41 (0.003) | 17.44 | ||||||||
| BP magnitude | 17.62 (0.008) | 17.59 | 17.59 | ||||||||||
| RP magnitude | 17.06 (0.006) | 17.07 | 17.07 | ||||||||||
| Pan g magnitude | 17.60 (0.003) | 17.60 (0.004) | |||||||||||
| Pan r magnitude | 17.43 (0.006) | 17.43 (0.005) | |||||||||||
| Pan i magnitude | 17.44 (0.002) | 17.44 (0.006) | |||||||||||
| Pan z magnitude | 17.45 (0.006) | 17.45 (0.006) | |||||||||||
| Pan y magnitude | 17.46 (0.02) | 17.46 (0.01) | |||||||||||
| E(B-V) | 0.003 | ||||||||||||
* 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.