All names: Gaia DR2 2543632945844125824, GLEAM J003007-000018, [MML2015] 5BZB J0030-0000, SDSS J003007.89-000007.2, Gaia DR3 2543632945844125824, Gaia EDR3 2543632945844125824, NVSS J003007-000008, AT20G J003007-000007, FIRST J003007.8-000007, WISE J003007.89-000007.0, WISEA J003007.89-000007.2, SDSS J003007.88-000007.3, TGSSADR J003007.9-000008, SDSS J003007.89-000007.21
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Gaia DR2 | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|
| Right ascension | 00 30 07.89 (0.4) | 00 30 07.89 | 00 30 07.89 (0.6) | 00 30 07.89 (0.4) | |||
| Declination | -00 00 07.27 (0.3) | -00 00 07.22 | -00 00 07.27 (0.5) | -00 00 07.27 (0.3) | |||
| Spectral type | DC: | ||||||
| Effective temperature | [K] | 9889.0 (1000) | |||||
| log(g) | [cgs] | 6.50 (0.5) | |||||
| Mass | [M☉] | ||||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | -0.22 (0.5) | -0.47 (0.6) | ||||
| Distance | [pc] | ||||||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 0.261668852 (0.5) | -0.641641934 (1) | 0.262 (0.5) | |||
| Proper motion (declination) | [mas/yr] | 0.08613693 (0.4) | -0.39241779 (1) | 0.086 (0.4) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | |||||||
| V magnitude | |||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | |||||||
| H magnitude | |||||||
| K magnitude | |||||||
| u magnitude | 20.62 (0.06) | 20.62 (0.06) | 20.62 (0.07) | ||||
| g magnitude | 19.91 (0.02) | 19.91 (0.02) | 20.13 (0.02) | ||||
| r magnitude | 19.48 (0.01) | 19.48 (0.01) | 19.58 (0.02) | ||||
| i magnitude | 19.12 (0.01) | 19.12 (0.01) | 19.16 (0.02) | ||||
| z magnitude | 18.82 (0.04) | 18.82 (0.04) | 18.80 (0.04) | ||||
| G magnitude | 19.93 (0.08) | 20.00 | 19.93 (0.01) | ||||
| BP magnitude | 20.23 (0.08) | 20.16 | |||||
| RP magnitude | 19.25 (0.06) | 19.18 | |||||
| Pan g magnitude | 19.95 (0.03) | ||||||
| Pan r magnitude | 19.55 (0.04) | ||||||
| Pan i magnitude | 19.24 (0.01) | ||||||
| Pan z magnitude | 18.66 (0.01) | ||||||
| Pan y magnitude | 18.52 (0.1) | ||||||
| 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.