WD 0142+230
All names: SDSS J014519.69+231752.7, LSPM J0145+2317E, G 39-49, SDSS J014519.53+231753.4, G 94-7, SDSS J014519.62+231753.0, IDS 01397+2247 B, UCAC4 567-003393, G 35-11, G 72-33, WD 0142+23, NLTT 5829, EGGR 12, UBV 1776, WDS J01452+2317B, LTT 10614, CSI+23-01425 1, GEN, PSO J014519.682+231752.771, Gaia DR2 290678477446232960, WDJ014519.42+231753.94, WD 0142+230
| Parameter | Unit | MWDD H | MWDD HE | Pan-STARRS DR1 | Gaia DR2 | SDSS DR12 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 45 19.77 (0.1) | 01 45 19.62 | 01 45 19.50 | 01 45 19.77 | 01 45 18.29 | ||||
| Declination | 23 17 52.28 (0.09) | 23 17 53.08 | 23 17 53.71 | 23 17 52.28 | 23 17 54.96 | ||||
| Spectral type | DC4 | DC4 | DC4 | DC4 | |||||
| Effective temperature | [K] | 8195.0 | 7902.0 | ||||||
| log(g) | [cgs] | 8.23 | 8.14 | ||||||
| Mass | [M☉] | 0.742 | 0.664 | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 1.4650 | 1.3830 | ||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 16.41 (0.1) | 16.41 (0.1) | ||||||
| Distance | [pc] | 60.95 (0.4) | 60.95 (0.4) | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 308.169741 (0.2) | 305.0 | 308.169741 | |||||
| Proper motion (declination) | [mas/yr] | -107.589919 (0.2) | -110.0 | -107.589919 | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | yes | ||||||||
| B magnitude | 17.30 | ||||||||
| V magnitude | 17.41 | ||||||||
| R magnitude | 16.60 | ||||||||
| I magnitude | 17.30 | ||||||||
| J magnitude | 16.85 | ||||||||
| H magnitude | 15.83 | ||||||||
| K magnitude | |||||||||
| u magnitude | 17.49 (0.01) | 17.51 | 17.49 (0.01) | ||||||
| g magnitude | 17.21 (0.004) | 17.22 | 17.23 (0.004) | ||||||
| r magnitude | 17.16 (0.005) | 17.14 | 17.17 (0.005) | ||||||
| i magnitude | 17.20 (0.006) | 17.20 | 17.20 (0.006) | ||||||
| z magnitude | 17.31 (0.01) | 17.32 | 17.31 (0.01) | ||||||
| G magnitude | 17.14 | 17.14 | |||||||
| BP magnitude | 17.24 | 17.24 | |||||||
| RP magnitude | 16.90 | 16.90 | |||||||
| Pan g magnitude | 17.24 (0.003) | ||||||||
| Pan r magnitude | 17.17 (0.006) | ||||||||
| Pan i magnitude | 17.23 (0.003) | ||||||||
| Pan z magnitude | 17.33 (0.006) | ||||||||
| Pan y magnitude | 17.40 (0.02) |
* Constant surface field
Special notes:
Spectra
Controls
Normalize at:
Range:
x:
to
y:
to
Spectra available:
Spectra without link are available upon request
Absorption lines
Photometric filters
BVRI
ugriz
Photometric fit
