All names: WD 1615-154, CSI-15-16151, WD 1615-15, 2MASS J16175525-1535519, EGGR 118, WD 1615-157, NLTT 42430, Gaia EDR3 4328293291578459392, WDJ161755.24-153552.15, TIC 52796280, UBV 13833, USNO-B1.0 0744-00340200, GSC 06202-00265, Gaia DR2 4328293291578459392, UCAC2 26014608, UBV M 42344, G 153-41, PLX 3693.01, LTT 6497, Gaia DR3 4328293291578459392, LP 744-40, L 770-3, uvby98 980153041
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 17 55.05 (0.04) | 16 17 55.06 (0.05) | 16 17 55.05 | 16 17 55.24 (0.04) | 16 17 55.06 | 16 17 55.49 | |||||
| Declination | -15 35 54.78 (0.02) | -15 35 54.70 (0.03) | -15 35 54.78 | -15 35 52.15 (0.02) | -15 35 54.70 | -15 35 41.28 | |||||
| Spectral type | DA | DA | DA1.7 | DA2 | |||||||
| Effective temperature | [K] | 30200.0 (440) | 29465.0 (14) | 35076.0 (780) | |||||||
| log(g) | [cgs] | 8.02 (0.05) | 8.03 (0.003) | 8.25 (0.02) | |||||||
| Mass | [M☉] | 0.66 (0.03) | 0.799 (0.01) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| 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] | 21.44 (0.04) | 21.23 (0.06) | 21.44 | 21.44 (0.04) | 21.23 (0.06) | 6.00 (9) | ||||
| Distance | [pc] | 46.64 (0.09) | 47.11 (0.1) | 31.00 | 46.64 | 46.64 (0.09) | 47.11 (0.1) | 166.67 (250) | |||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -172.259159 (0.04) | -172.4506639 (0.1) | -172.259 (0.04) | -172.4506639 | ||||||
| Proper motion (declination) | [mas/yr] | -164.3545674 (0.04) | -164.5092876 (0.08) | -164.355 (0.04) | -164.5092876 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 13.21 (0.0006) | ||||||||||
| V magnitude | 13.40 | 13.43 (0.002) | |||||||||
| R magnitude | 13.56 (0.002) | ||||||||||
| I magnitude | 13.71 (0.002) | ||||||||||
| J magnitude | 14.04 (0.03) | ||||||||||
| H magnitude | 14.21 (0.04) | ||||||||||
| K magnitude | 14.32 (0.08) | ||||||||||
| u magnitude | |||||||||||
| g magnitude | |||||||||||
| r magnitude | |||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 13.40 (0.002) | 13.41 | 13.40 | 13.40 (0.003) | 13.41 | ||||||
| BP magnitude | 13.26 (0.002) | 13.20 | 13.20 | ||||||||
| RP magnitude | 13.68 (0.001) | 13.68 | 13.68 | ||||||||
| Pan g magnitude | 13.24 (0.005) | ||||||||||
| Pan r magnitude | 13.68 (0.01) | ||||||||||
| Pan i magnitude | 14.02 (0.003) | ||||||||||
| Pan z magnitude | 14.31 (0.002) | ||||||||||
| Pan y magnitude | 14.50 (0.002) | ||||||||||
| E(B-V) | 0.001 | ||||||||||
* 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.