TIC 146557946
Eclipsing binaryProbably known
Notes
WARNING: same period as the known variable ATO J077.4367-20.7733 52" away; the signal is probably its light leaking in.
Found automatically by hunt.py in TESS sector 32 (flagged in 2 sector(s)). Detection score 149.1.
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) | 0.489038 |
| Period source | hunt.py on TESS QLP sector 32 |
| Eclipse / dip depth | 1.7% |
| Amplitude | 2.6% |
| Data used | TESS sector 32 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 625 (~2,040 light years) |
| Temperature (Gaia) | 5,954 K |
| Size (Gaia) | 1.32 x the Sun |
| Mass (Gaia) | 1.09 x the Sun |
| Luminosity (Gaia) | 1.96 x the Sun |
| Colour, Gaia BP-RP | 0.72 |
| RUWE (Gaia) | 0.94 - fits a single star |
| Gaia G mag | 12.90 |
| TESS mag | 12.53 |
Names & neighbours
| TIC ID | 146557946 |
| Gaia DR3 ID | 2963179752344892672 |
| SIMBAD name | not in SIMBAD |
| Nearest known variable | ATO J077.4367-20.7733 (EA, P = 0.97794 d), 52" away (same period!) |
| RA (deg) | 77.4256 |
| Dec (deg) | -20.7835 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-12 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC146557946_s0032.fits 205 KB
- TIC146557946_s0032.png 71 KB
- thumb.png 109 KB
- meta.json
