All names: JVAS J1248+583, FIRST J124818.7+582028, 1FHL J1248.1+5821, [MGL2009] BZB J1248+5820, [VV2000b] J124818.8+582029, RGB J1248+583, [VV2010b] J124818.8+582028, NVSS J124818+582028, 2FGL J1248.2+5820, TIC 150343823, 2MASS J12481877+5820285, WD 1246+586, JVAS B1246+586, CLASS J124818.7838+582028.725, SBSS 1246+586, Gaia EDR3 1578013182604935168, LAMOST J124818.78+582028.9, Gaia DR1 1578013178309867008, 6C 124606+583650, Gaia DR2 1578013182604935168, MY 124605.2+582115.9, LB 2449, TXS 1246+586, RGB J1248.3+5820, WISEA J124818.78+582028.7, GJ 3750, [NBK96] J12483+5820, [VV2003b] J124818.8+582029, CGRaBS J1248+5820, GB6 B1246+5836, 9Y-MST J1248+5820, [ZEH2003] RX J1248.3+5820 1, IERS B1246+586, VIPS J12483+5820, PG 1246+586, RX J1248.3+5820, MY 124605.2+583736.7, CJ2 1246+586, Gaia DR3 1578013182604935168, [DGT2001] B1246+586, KODIAQ J124818+582028, ICRF J124818.7+582028, GB6 J1248+5820, CJF B1246+586, 3FGL J1248.2+5820, VCS1 J1248+5820, [SRM2005] J124818.78+582028.7, [MML2015] 5BZB J1248+5820, RBS 1158, [VV98b] J124818.8+582029, WN B1246.1+5836, 0FGL J1248.7+5811, FL8Y J1248.3+5820, [HMI96] 1246+5836, CRATES J124818+582029, [VV2006b] J124818.8+582028, 4FGL J1248.3+5820, WB 1246+5836, JVAS J1248+5820, BWE 1246+5836, IVS B1246+586, QSO B1246+586, 2FHL J1248.1+5820, 3FHL J1248.3+5820, WISE J124818.78+582028.7, SDSS J124818.79+582028.7, WISE J124818.79+582028.8, 87GB 124607.1+583638, SDSS J124818.78+582028.7, 1FGL J1248.2+5820, SDSS J124818.78+582028.9, 1RXS J124818.9+582031
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|
| Right ascension | 12 48 18.78 (0.02) | 12 48 18.79 | 12 48 18.78 (0.02) | 12 48 16.49 | |
| Declination | 58 20 28.72 (0.02) | 58 20 28.79 | 58 20 28.72 (0.02) | 58 20 27.24 | |
| Spectral type | BL Lac | ||||
| 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] | -0.03 (0.03) | |||
| Distance | [pc] | ||||
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -0.002182474 (0.03) | -0.002 (0.03) | ||
| Proper motion (declination) | [mas/yr] | -0.013738104 (0.03) | -0.014 (0.03) | ||
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 16.10 | ||||
| V magnitude | 15.78 | ||||
| R magnitude | 15.19 | ||||
| I magnitude | |||||
| J magnitude | 13.48 (0.02) | ||||
| H magnitude | 12.78 (0.02) | ||||
| K magnitude | 12.03 (0.02) | ||||
| u magnitude | 15.96 (0.005) | 15.96 (0.005) | |||
| g magnitude | 15.58 (0.003) | 15.58 (0.003) | |||
| r magnitude | 15.31 (0.003) | 15.32 (0.003) | |||
| i magnitude | 15.10 (0.003) | 15.10 (0.003) | |||
| z magnitude | 14.93 (0.005) | 14.93 (0.005) | |||
| G magnitude | 15.59 (0.06) | 15.59 (0.02) | |||
| BP magnitude | 15.85 (0.06) | ||||
| RP magnitude | 15.03 (0.06) | ||||
| 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.