TIC 155531637
Eclipsing binaryProbably known
Notes
WARNING: same period as the known variable CSS_J071610.6+393451 40" away; the signal is probably its light leaking in.
Found automatically by hunt.py in TESS sector 20 (flagged in 1 sector(s)). Detection score 386.5.
Not in VSX, ASAS-SN or ZTF variable catalogues at the time of the search; not in Gaia DR3's variable lists.
Unchecked by hand yet: verify the period, nearby stars and a wider catalogue search.
The signal
| Type | Eclipsing binary |
| Status | Probably known |
| Period (days) | 0.860716 |
| Period source | hunt.py on TESS QLP sector 20 |
| Eclipse / dip depth | 7.8% |
| Amplitude | 9.6% |
| Data used | TESS sector 20 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 725 (~2,364 light years) |
| Temperature (Gaia) | 6,239 K |
| Size (Gaia) | 1.64 x the Sun |
| Mass (Gaia) | 1.28 x the Sun |
| Luminosity (Gaia) | 3.65 x the Sun |
| Colour, Gaia BP-RP | 0.73 |
| RUWE (Gaia) | 1.21 - fits a single star |
| Gaia G mag | 12.64 |
| TESS mag | 12.26 |
Names & neighbours
| TIC ID | 155531637 |
| Gaia DR3 ID | 948291468577663744 |
| SIMBAD name | TYC 2948-1158-1 [*] |
| Nearest known variable | CSS_J071610.6+393451 (EA, P = 0.86078 d), 40" away (same period!) |
| RA (deg) | 109.057 |
| Dec (deg) | 39.5759 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-11 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC155531637_s0020.fits 76 KB
- TIC155531637_s0020.png 46 KB
- thumb.png 42 KB
- meta.json
