All names: Gaia DR3 644316974972741760, SDSS J093045.92+225957.3, Gaia EDR3 644316974972741760, Gaia DR2 644316974972741760, TIC 286713478, WD 0927+232, LAMOST J093045.91+225957.2, SDSS J093045.91+225957.2, GALEX J093045.8+225958, 2MASS J09304593+2259571
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Guo et al. 2015 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 30 45.93 (0.7) | 09 30 45.92 | 09 30 45.93 (1) | 09 30 45.91 | 09 30 45.92 (0.7) | 09 30 46.15 | 09 30 45.92 | ||||
| Declination | 22 59 57.30 (0.6) | 22 59 57.26 | 22 59 57.30 (1) | 22 59 57.19 | 22 59 57.18 (0.6) | 22 59 52.80 | 22 59 57.29 | ||||
| Spectral type | DA+M | DA+M | DA+M | DA2.7 M | DA+M | ||||||
| Effective temperature | [K] | 18974.0 (1219) | 6300.0 (1) | ||||||||
| log(g) | [cgs] | 7.97 (0.3) | 5.91 (0.1) | ||||||||
| Mass | [M☉] | 0.6 (0.2) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 5.08 (0.8) | 5.08 (0.8) | ||||||||
| Distance | [pc] | 196.96 (31) | 609.00 (79) | 196.96 (31) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 5.000073512 (0.9) | 5.0 (0.9) | ||||||||
| Proper motion (declination) | [mas/yr] | 7.792782942 (0.8) | 7.793 (0.8) | ||||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.19 (0.08) | ||||||||||
| H magnitude | 15.32 (0.07) | ||||||||||
| K magnitude | 15.04 (0.09) | ||||||||||
| u magnitude | 19.80 (0.03) | 19.77 | 19.80 (0.03) | 19.76 | 19.80 (0.04) | ||||||
| g magnitude | 19.39 (0.01) | 19.40 | 19.39 (0.01) | 19.40 | 19.43 (0.02) | ||||||
| r magnitude | 18.84 (0.01) | 18.88 | 18.84 (0.01) | 18.88 | 18.90 (0.02) | ||||||
| i magnitude | 17.93 (0.008) | 17.94 | 17.93 (0.008) | 17.94 | 17.95 (0.02) | ||||||
| z magnitude | 17.32 (0.01) | 17.32 | 17.32 (0.01) | 17.33 | 17.35 (0.02) | ||||||
| G magnitude | 18.67 (0.03) | 18.61 | 18.67 (0.008) | ||||||||
| BP magnitude | 19.18 (0.03) | 19.20 | |||||||||
| RP magnitude | 17.52 (0.01) | 17.51 | |||||||||
| Pan g magnitude | 19.38 (0.01) | ||||||||||
| Pan r magnitude | 18.89 (0.005) | ||||||||||
| Pan i magnitude | 17.95 (0.006) | ||||||||||
| Pan z magnitude | 17.48 (0.004) | ||||||||||
| Pan y magnitude | 17.21 (0.01) | ||||||||||
| E(B-V) | 0.014 | ||||||||||
* 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.