All names: WD 0300+007, SDSS J030308.36+005443.3, LAMOST J030308.35+005444.1, SDSS J030308.36+005444.1, Gaia EDR3 155649614856576, Gaia DR3 155649614856576, [HH86] 0300+007, US 3566, LAMOST J030308.35+005443.3, 2MASS J03030835+0054438, USNO-B1.0 0909-00031955, WIRED J030308.35+005444.1, Gaia DR2 155649614856576, GALEX J030308.3+005444, SDSS J030308.36+005443.7, TIC 328233639, SDSS J030308.35+005444.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Guo et al. 2015 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 03 08.35 (0.08) | 03 03 08.36 | 03 03 08.35 (0.1) | 03 03 08.35 | 03 03 08.36 (0.08) | 03 03 08.36 | 03 03 08.42 | 03 03 08.36 | ||||
| Declination | 00 54 42.84 (0.08) | 00 54 43.34 | 00 54 42.87 (0.1) | 00 54 44.10 | 00 54 43.92 (0.08) | 00 54 43.75 | 00 54 42.84 | 00 54 44.14 | ||||
| Spectral type | DC+M | DC+M | DC+M4.5e | DC:+M | DC: | DC:M | ||||||
| Effective temperature | [K] | 6300.0 (3) | 6300.0 (3) | |||||||||
| log(g) | [cgs] | 8.99 (0.01) | 10.00 (0.003) | |||||||||
| Mass | [M☉] | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 8.30 (0.1) | 8.14 (0.2) | 8.30 (0.1) | ||||||||
| Distance | [pc] | 120.51 (1) | 122.89 (2) | 932.00 (242) | 120.51 (1) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -7.450579055 (0.1) | -7.992085125 (0.2) | -7.451 (0.1) | -4.3 | |||||||
| Proper motion (declination) | [mas/yr] | -67.60655705 (0.1) | -68.15584625 (0.2) | -67.607 (0.1) | -68.8 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | ||||||||||
| B magnitude | 18.90 | |||||||||||
| V magnitude | 18.06 (0.3) | |||||||||||
| R magnitude | 18.10 | |||||||||||
| I magnitude | 16.00 (0.4) | |||||||||||
| J magnitude | 14.41 (0.003) | |||||||||||
| H magnitude | 13.77 (0.003) | |||||||||||
| K magnitude | 13.46 (0.003) | |||||||||||
| u magnitude | 19.01 (0.02) | 19.14 | 19.01 (0.02) | 19.14 (0.03) | 19.14 | 19.17 (0.03) | ||||||
| g magnitude | 18.54 (0.008) | 18.60 | 18.54 (0.008) | 18.60 (0.01) | 18.60 | 18.62 (0.01) | ||||||
| r magnitude | 18.00 (0.007) | 18.06 | 18.00 (0.007) | 18.06 (0.03) | 18.06 | 18.06 (0.02) | ||||||
| i magnitude | 16.89 (0.005) | 16.90 | 16.89 (0.005) | 16.90 (0.01) | 16.89 | 16.89 (0.01) | ||||||
| z magnitude | 16.03 (0.007) | 16.04 | 16.03 (0.007) | 16.04 (0.02) | 16.03 | 16.04 (0.02) | ||||||
| G magnitude | 17.36 (0.01) | 17.38 | 17.36 (0.004) | |||||||||
| BP magnitude | 18.37 (0.01) | 18.39 | ||||||||||
| RP magnitude | 16.26 (0.01) | 16.27 | ||||||||||
| Pan g magnitude | 18.53 (0.01) | |||||||||||
| Pan r magnitude | 18.02 (0.009) | |||||||||||
| Pan i magnitude | 16.82 (0.008) | |||||||||||
| Pan z magnitude | 16.16 (0.009) | |||||||||||
| Pan y magnitude | 15.77 (0.008) | |||||||||||
| E(B-V) | 0.005 | |||||||||||
* 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.