All names: Gaia DR3 6233522951380817152, DENIS J154522.4-274005, LP 916-27, TIC 23345982, UCAC3 125-180560, Gaia DR2 6233522951380817152, Gaia EDR3 6233522951380817152, WDJ154522.43-274005.15, WD 1542-27, WDS J15455-2740B, UCAC4 312-081248, 2MASS J15452244-2740049, WD 1542-275, ** LDS 4589B
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Sion et al. 2014 | Bergeron et al. 2011 | Voss et al. 2007 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 45 22.19 (0.04) | 15 45 22.19 (0.1) | 15 50 37.92 | 15 45 22.19 | 15 45 22.43 (0.04) | 15 45 22.19 | 15 45 20.69 | |||||
| Declination | -27 40 07.42 (0.03) | -27 40 07.35 (0.04) | 27 39 21.60 | -27 40 07.42 | -27 40 05.15 (0.03) | -27 40 07.35 | -27 39 21.24 | |||||
| Spectral type | DB4.0 | DBA | DB | DB4 | DB | |||||||
| Effective temperature | [K] | 12700.0 (385) | 10826.0 | 11134.0 (97) | ||||||||
| log(g) | [cgs] | 9.13 (0.1) | 8.00 | 7.99 (0.01) | ||||||||
| Mass | [M☉] | 1.24 (0.06) | 0.577 | 0.579 (0.009) | ||||||||
| log(Luminosity) | [L☉] | -3.23 | ||||||||||
| Cooling age | [Gyr] | 1.5488 | 6.7890 | |||||||||
| log(H/He) | -4.95 (0.6) | -5.61 | ||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| log(N/He) | ||||||||||||
| log(O/He) | ||||||||||||
| log(Na/He) | ||||||||||||
| log(Mg/He) | ||||||||||||
| log(Al/He) | ||||||||||||
| log(Si/He) | ||||||||||||
| log(P/He) | ||||||||||||
| log(S/He) | ||||||||||||
| log(Cl/He) | ||||||||||||
| log(Sc/He) | ||||||||||||
| log(Ti/He) | ||||||||||||
| log(V/He) | ||||||||||||
| log(Cr/He) | ||||||||||||
| log(Mn/He) | ||||||||||||
| log(Fe/He) | ||||||||||||
| log(Co/He) | ||||||||||||
| log(Ni/He) | ||||||||||||
| log(Cu/He) | ||||||||||||
| log(Zn/He) | ||||||||||||
| log(Ga/He) | ||||||||||||
| log(Ge/He) | ||||||||||||
| log(Sr/He) | ||||||||||||
| Parallax | [mas] | 20.96 (0.05) | 20.73 (0.1) | 20.96 | 20.96 (0.05) | 20.73 (0.1) | ||||||
| Distance | [pc] | 47.70 (0.1) | 48.23 (0.3) | 22.00 | 47.70 | 47.70 (0.1) | 48.23 (0.3) | |||||
| Composition | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -203.1846986 (0.05) | -202.9282848 (0.1) | -203.185 (0.05) | -202.9282848 | |||||||
| Proper motion (declination) | [mas/yr] | -141.64449 (0.03) | -142.0076831 (0.08) | -141.644 (0.03) | -142.0076831 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 15.44 (0.02) | |||||||||||
| V magnitude | 15.49 | 15.50 | 15.42 (0.02) | |||||||||
| R magnitude | 15.76 (0.1) | |||||||||||
| I magnitude | 15.31 (0.05) | |||||||||||
| J magnitude | 15.28 (0.05) | |||||||||||
| H magnitude | 15.32 (0.08) | |||||||||||
| K magnitude | 15.32 (0.2) | |||||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 15.35 (0.003) | 15.37 | 15.35 | 15.35 (0.003) | 15.37 | |||||||
| BP magnitude | 15.35 (0.003) | 15.31 | 15.31 | |||||||||
| RP magnitude | 15.33 (0.002) | 15.32 | 15.32 | |||||||||
| Pan g magnitude | 15.35 (0.002) | |||||||||||
| Pan r magnitude | 15.47 (0.003) | |||||||||||
| Pan i magnitude | 15.66 (0.002) | |||||||||||
| Pan z magnitude | 15.84 (0.003) | |||||||||||
| Pan y magnitude | 15.98 (0.004) | |||||||||||
| E(B-V) | 0.002 | |||||||||||
* 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.