HS 0820+2503
All names: USNO-B1.0 1148-00156987, SDSS J082346.14+245345.6, Gaia EDR3 679177201586401280, Gaia DR2 679177201586401280, SDSS J082346.15+245345.6, SDSS J082346.08+245344.8, LSPM J0823+2453, Gaia DR3 679177201586401280, WD 0820+250.1, TIC 302262924, 1RXS J082345.4+245344, 2MASS J08234620+2453459, GALEX J082346.1+245346, SDSS J082346.07+245344.8, HS 0820+2503, SDSS J082346.15+245345.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 23 46.01 (0.05) | 08 23 46.15 | 08 23 46.02 (0.07) | 08 23 46.01 | 08 23 46.18 (0.05) | 08 23 46.15 | 08 23 46.06 | 08 23 46.15 | ||||||||
| Declination | 24 53 44.22 (0.03) | 24 53 45.64 | 24 53 44.28 (0.04) | 24 53 44.22 | 24 53 46.01 (0.03) | 24 53 45.65 | 24 53 40.92 | 24 53 45.65 | ||||||||
| Spectral type | DA | DA | DA | DA | DA | DA_auto | DA | DA | DA | |||||||
| Effective temperature | [K] | 33428.0 (98) | 29635.0 | 34050.0 (100) | 33367.0 (80) | 35485.0 (1271) | 34521.0 (47) | 33780.0 (226) | ||||||||
| log(g) | [cgs] | 7.72 (0.02) | 7.63 | 7.74 (0.02) | 7.66 (0.01) | 7.92 (0.03) | 7.78 (0.03) | 7.78 (0.02) | ||||||||
| Mass | [M☉] | 0.52 (0.01) | 0.472 | 0.53 (0.01) | 0.616 (0.02) | 0.553 (0.008) | ||||||||||
| log(Luminosity) | [L☉] | -0.52 (0.01) | ||||||||||||||
| Cooling age | [Gyr] | 0.0059 (0.0001) | 0.0098 | 0.0065 | ||||||||||||
| 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] | 5.45 (0.06) | 5.21 (0.09) | 5.45 | 5.45 (0.06) | |||||||||||
| Distance | [pc] | 183.54 (2) | 192.08 (3) | 183.54 | 183.54 (2) | |||||||||||
| Composition | H | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -143.5429725 (0.05) | -143.6248458 (0.1) | -143.543 (0.05) | -141.2 | |||||||||||
| Proper motion (declination) | [mas/yr] | -111.4822485 (0.04) | -111.3955726 (0.08) | -111.482 (0.04) | -111.1 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | 15.00 | 15.90 | ||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | 15.70 | |||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 16.54 (0.008) | |||||||||||||||
| H magnitude | 16.59 (0.03) | |||||||||||||||
| K magnitude | 16.78 (0.06) | |||||||||||||||
| u magnitude | 15.26 (0.004) | 15.28 (0.004) | 15.27 (0.03) | 15.27 | 15.26 (0.03) | |||||||||||
| g magnitude | 15.55 (0.003) | 15.55 (0.003) | 15.55 (0.03) | 15.55 | 15.56 (0.03) | |||||||||||
| r magnitude | 16.04 (0.004) | 16.04 (0.004) | 16.04 (0.01) | 16.04 | 16.04 (0.01) | |||||||||||
| i magnitude | 16.40 (0.005) | 16.41 (0.005) | 16.39 (0.01) | 16.40 | 16.40 (0.01) | |||||||||||
| z magnitude | 16.74 (0.01) | 16.74 (0.01) | 16.70 (0.03) | 16.70 | 16.72 (0.02) | |||||||||||
| G magnitude | 15.80 (0.003) | 15.82 | 15.80 | 15.80 (0.003) | ||||||||||||
| BP magnitude | 15.66 (0.003) | 15.57 | ||||||||||||||
| RP magnitude | 16.10 (0.004) | 16.10 | ||||||||||||||
| Pan g magnitude | 15.62 (0.006) | |||||||||||||||
| Pan r magnitude | 16.06 (0.002) | |||||||||||||||
| Pan i magnitude | 16.42 (0.003) | |||||||||||||||
| Pan z magnitude | 16.71 (0.003) | |||||||||||||||
| Pan y magnitude | 16.92 (0.004) | |||||||||||||||
| E(B-V) | 0.007 | |||||||||||||||
* Constant surface field
Special notes:
Spectra
Controls
Normalize at:
Normalize by mean flux
Range:
x:
to
y:
to
Spectra available:
Spectra without link are available upon request
Absorption lines
Photometric filters
BVRI
ugriz
Photometric fit
