All names: IERS B1246+586, Gaia DR1 1578013178309867008, [NBK96] J12483+5820, [MML2015] 5BZB J1248+5820, VCS1 J1248+5820, QSO B1246+586, Gaia EDR3 1578013182604935168, FIRST J124818.7+582028, Gaia DR2 1578013182604935168, MY 124605.2+582115.9, PG 1246+586, SDSS J124818.78+582028.7, RX J1248.3+5820, BWE 1246+5836, JVAS J1248+583, CJF B1246+586, WISE J124818.78+582028.7, ICRF J124818.7+582028, CRATES J124818+582029, [HMI96] 1246+5836, 3FHL J1248.3+5820, Gaia DR3 1578013182604935168, LAMOST J124818.78+582028.9, WISE J124818.79+582028.8, 2FHL J1248.1+5820, [VV98b] J124818.8+582029, 4FGL J1248.3+5820, SDSS J124818.79+582028.7, WB 1246+5836, NVSS J124818+582028, GJ 3750, 87GB 124607.1+583638, [SRM2005] J124818.78+582028.7, WISEA J124818.78+582028.7, SDSS J124818.78+582028.9, 1FHL J1248.1+5821, GB6 J1248+5820, CGRaBS J1248+5820, [MGL2009] BZB J1248+5820, 9Y-MST J1248+5820, IVS B1246+586, SBSS 1246+586, JVAS B1246+586, RGB J1248.3+5820, 0FGL J1248.7+5811, [ZEH2003] RX J1248.3+5820 1, 2FGL J1248.2+5820, [VV2003b] J124818.8+582029, WD 1246+586, [VV2000b] J124818.8+582029, WN B1246.1+5836, RGB J1248+583, CJ2 1246+586, 2MASS J12481877+5820285, 3FGL J1248.2+5820, MY 124605.2+583736.7, CLASS J124818.7838+582028.725, FL8Y J1248.3+5820, VIPS J12483+5820, KODIAQ J124818+582028, TIC 150343823, JVAS J1248+5820, [VV2010b] J124818.8+582028, 6C 124606+583650, 1RXS J124818.9+582031, LB 2449, 1FGL J1248.2+5820, TXS 1246+586, [VV2006b] J124818.8+582028, [DGT2001] B1246+586, GB6 B1246+5836, RBS 1158
| 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.