All names: SDSS J150741.36+182406.8, Gaia DR2 1211873229279489536, Gaia EDR3 1211873229279489536, Gaia DR3 1211873229279489536, SDSS J150741.35+182406.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 07 41.36 (0.4) | 15 07 41.36 | 15 07 41.36 (0.8) | 15 07 41.36 (0.4) | 15 07 41.36 | |||
| Declination | 18 24 06.67 (0.4) | 18 24 06.78 | 18 24 06.67 (0.5) | 18 24 06.80 (0.4) | 18 24 06.82 | |||
| Spectral type | DQ | DQ | ||||||
| Effective temperature | [K] | 6305.0 (10) | ||||||
| log(g) | [cgs] | 9.95 (0.06) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.59 (0.6) | 1.56 (1) | 0.59 (0.6) | ||||
| Distance | [pc] | 1691.76 (1673) | 641.14 (411) | 1691.76 (1673) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 2.563467096 (0.5) | 1.747772831 (1) | 2.563 (0.5) | ||||
| Proper motion (declination) | [mas/yr] | -8.146541418 (0.5) | -7.956633068 (1) | -8.147 (0.5) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 22.52 (0.3) | 22.50 (0.3) | 25.29 (1) | |||||
| g magnitude | 20.77 (0.03) | 20.99 (0.04) | 20.99 (0.04) | |||||
| r magnitude | 20.03 (0.02) | 20.04 (0.02) | 20.04 (0.02) | |||||
| i magnitude | 19.78 (0.03) | 19.80 (0.03) | 19.80 (0.03) | |||||
| z magnitude | 19.68 (0.08) | 19.57 (0.07) | 19.57 (0.07) | |||||
| G magnitude | 20.13 (0.07) | 20.17 | 20.13 (0.006) | |||||
| BP magnitude | 20.48 (0.07) | 20.59 | ||||||
| RP magnitude | 19.51 (0.04) | 19.50 | ||||||
| Pan g magnitude | 20.82 (0.03) | |||||||
| Pan r magnitude | 20.05 (0.01) | |||||||
| Pan i magnitude | 19.78 (0.01) | |||||||
| Pan z magnitude | 19.70 (0.01) | |||||||
| Pan y magnitude | 19.61 (0.06) | |||||||
| E(B-V) | 0.038 | |||||||
* 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.