All names: [BSF97] J123143.57+284749.7, [VV2000b] J123143.6+284749, 3HSP J123143.6+284749, RGB J1231+287, [VV2003] J123143.5+284750, [MML2015] 5BZB J1231+2847, MITG J123143+2848, 3FHL J1231.7+2847, Gaia DR3 4010804292533346176, TXS 1229+290, [VV98b] J123143.7+284750, Gaia EDR3 4010804292533346176, 2MASS J12314357+2847497, 2FGL J1231.7+2848, RX J1231.6+2847, ATO J187.9315+28.7971, B2 1229+29, SDSS J123143.57+284749.7, 1FGL J1231.6+2850, [VV2010] J123143.5+284750, WN B1229.1+2905B, WD 1229+290, CLASS J123143.5769+284749.753, FBQS J1231+2847, WISEA J123143.56+284749.7, FIRST J123143.5+284749, RX J1231.7+2847, [ZEH2003] RX J1231.7+2847 1, WISE J123143.56+284749.7, WISE J123143.57+284749.8, 87GB 122914.9+290436, 9Y-MST J1231+2847, RGB J1231.7+2847, KUV 12292+2904, 4FGL J1231.7+2847, [CRJ2004] J1231.7+2847, 1RXS J123144.7+284754, 1WGA J1231.7+2848, 1FHL J1231.8+2849, NVSS J123143+284751, 7C 122915.40+290414.00, TIC 393834289, GB6 B1229+2904, [MGL2009] BZB J1231+2847, BWE 1229+2904, 3FGL J1231.7+2847, 2FHL J1231.7+2848, Gaia DR2 4010804292533346176, FL8Y J1231.7+2847, WB 1229+2904, [VV2006] J123143.5+284750, CRATES J123144+284803
| Parameter | Unit | Gaia EDR3 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|
| Right ascension | 12 31 43.57 (0.06) | 12 31 43.57 (0.06) | 12 31 43.85 | |
| Declination | 28 47 49.77 (0.03) | 28 47 49.77 (0.03) | 28 47 44.88 | |
| Spectral type | DC | |||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | -0.24 (0.06) | ||
| Distance | [pc] | |||
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.391677622 (0.07) | 0.392 (0.07) | |
| Proper motion (declination) | [mas/yr] | -0.130392819 (0.06) | -0.13 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 17.90 | |||
| V magnitude | 17.38 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.74 (0.08) | |||
| H magnitude | 15.13 (0.08) | |||
| K magnitude | 14.41 (0.07) | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.74 (0.02) | 16.74 (0.007) | ||
| BP magnitude | 16.96 (0.02) | |||
| RP magnitude | 16.13 (0.02) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | ||||
* 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.