TIC 277557738
Eclipsing binaryProbably known
Notes
WARNING: same period as the known variable ASAS J105700-7401.4 73" away; the signal is probably its light leaking in.
Found automatically by hunt.py in TESS sector 12 (flagged in 1 sector(s)). Detection score 299.6.
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) | 1.45852 |
| Period source | hunt.py on TESS QLP sector 12 |
| Eclipse / dip depth | 5.5% |
| Amplitude | 6.5% |
| Data used | TESS sector 12 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 1,792 (~5,843 light years) |
| Colour, Gaia BP-RP | 0.52 |
| RUWE (Gaia) | 1.09 - fits a single star |
| Gaia G mag | 12.48 |
| TESS mag | 12.24 |
Names & neighbours
| TIC ID | 277557738 |
| Gaia DR3 ID | 5225858816974628608 |
| SIMBAD name | not in SIMBAD |
| Nearest known variable | ASAS J105700-7401.4 (ED, P = 1.4581 d), 73" away (same period!) |
| RA (deg) | 164.322 |
| Dec (deg) | -74.029 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-06 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC277557738_s0012.fits 82 KB
- TIC277557738_s0012.png 44 KB
- thumb.png 40 KB
- meta.json
