All names: WIRED J030544.41-074941.2, [SGR2010] J0305-0749, Gaia EDR3 5179737293484886016, [HHD2009] SDSS J0305-0749, GALEX J030544.4-074941, 2MASS J03054440-0749411, WD 0303-080, SBC9 3358, Gaia DR2 5179737293484886016, TIC 23169790, Gaia DR3 5179737293484886016, SDSS J030544.41-074941.2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 05 44.45 (0.09) | 03 05 44.42 | 03 05 44.45 (0.1) | 03 05 44.41 | 03 05 44.41 (0.09) | 03 05 44.42 | 03 05 44.04 | 03 05 44.41 | ||||
| Declination | -07 49 41.52 (0.08) | -07 49 41.23 | -07 49 41.51 (0.1) | -07 49 41.20 | -07 49 41.26 (0.08) | -07 49 41.24 | -07 49 37.20 | -07 49 41.24 | ||||
| Spectral type | DA+M | DA | DA+dMe | DA+M | DA6+M | DA+M | ||||||
| Effective temperature | [K] | 17707.0 (410) | 19040.0 (480) | 8279.0 (50) | 7936.0 (60) | |||||||
| log(g) | [cgs] | 7.81 (0.1) | 7.82 (0.08) | 7.02 (0.1) | 5.70 (0.1) | |||||||
| Mass | [M☉] | 0.52 (0.05) | 0.53 (0.04) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0646 | ||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| log(C/H) | ||||||||||||
| log(N/H) | ||||||||||||
| log(O/H) | ||||||||||||
| log(Na/H) | ||||||||||||
| log(Mg/H) | ||||||||||||
| log(Al/H) | ||||||||||||
| log(Si/H) | ||||||||||||
| log(P/H) | ||||||||||||
| log(S/H) | ||||||||||||
| log(Sc/H) | ||||||||||||
| log(Ti/H) | ||||||||||||
| log(Cr/H) | ||||||||||||
| log(Mn/H) | ||||||||||||
| log(Fe/H) | ||||||||||||
| log(Ni/H) | ||||||||||||
| Parallax | [mas] | 3.24 (0.1) | 3.14 (0.1) | 3.24 (0.1) | ||||||||
| Distance | [pc] | 309.04 (9) | 318.73 (13) | 222.00 (142) | 309.04 (9) | |||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 38.39996189 (0.1) | 38.45003351 (0.2) | 38.4 (0.1) | 43.2 | |||||||
| Proper motion (declination) | [mas/yr] | -16.61564203 (0.1) | -16.83145002 (0.2) | -16.616 (0.1) | -18.3 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.27 (0.05) | |||||||||||
| H magnitude | 14.58 (0.05) | |||||||||||
| K magnitude | 14.59 (0.09) | |||||||||||
| u magnitude | 18.69 (0.02) | 18.68 | 18.68 (0.02) | 18.68 (0.02) | 18.69 | 18.69 (0.02) | ||||||
| g magnitude | 18.30 (0.007) | 18.33 | 18.31 (0.007) | 18.33 (0.02) | 18.37 | 18.34 (0.02) | ||||||
| r magnitude | 18.11 (0.007) | 18.12 | 18.11 (0.007) | 18.12 (0.02) | 18.12 | 18.12 (0.02) | ||||||
| i magnitude | 17.31 (0.006) | 17.30 | 17.30 (0.006) | 17.30 (0.02) | 17.30 | 17.30 (0.02) | ||||||
| z magnitude | 16.69 (0.01) | 16.70 | 16.69 (0.01) | 16.70 (0.01) | 16.70 | 16.69 (0.01) | ||||||
| G magnitude | 17.69 (0.01) | 17.70 | 17.69 (0.003) | |||||||||
| BP magnitude | 18.27 (0.01) | 18.19 | ||||||||||
| RP magnitude | 16.85 (0.006) | 16.84 | ||||||||||
| Pan g magnitude | 18.26 (0.008) | |||||||||||
| Pan r magnitude | 18.10 (0.01) | |||||||||||
| Pan i magnitude | 17.30 (0.004) | |||||||||||
| Pan z magnitude | 16.78 (0.005) | |||||||||||
| Pan y magnitude | 16.50 (0.008) | |||||||||||
| E(B-V) | 0.027 | |||||||||||
* 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.