TIC 89398039
Eclipsing binaryProbably known
Notes
WARNING: same period as the known variable ASAS J213103-3225.9 57" away; the signal is probably its light leaking in.
Found automatically by hunt.py in TESS sector 28 (flagged in 1 sector(s)). Detection score 1101.4.
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) | 3.51783 |
| Period source | hunt.py on TESS QLP sector 28 |
| Eclipse / dip depth | 42.2% |
| Amplitude | 23.6% |
| Data used | TESS sector 28 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 1,096 (~3,573 light years) |
| Temperature (Gaia) | 5,248 K |
| Size (Gaia) | 2.16 x the Sun |
| Mass (Gaia) | 1.14 x the Sun |
| Luminosity (Gaia) | 3.19 x the Sun |
| Colour, Gaia BP-RP | 0.96 |
| RUWE (Gaia) | 1.09 - fits a single star |
| Gaia G mag | 13.63 |
| TESS mag | 13.14 |
Names & neighbours
| TIC ID | 89398039 |
| Gaia DR3 ID | 6783256706313430528 |
| SIMBAD name | not in SIMBAD |
| Nearest known variable | ASAS J213103-3225.9 (ED, P = 3.5164 d), 57" away (same period!) |
| RA (deg) | 322.747 |
| Dec (deg) | -32.4227 |
| 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
- TIC89398039_s0028.fits 200 KB
- TIC89398039_s0028.png 44 KB
- thumb.png 37 KB
- meta.json
