TIC 21745782
Eclipsing binaryProbably known
Notes
WARNING: same period as the known variable SSS_J055345.7-411110 34" 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 182.8.
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.
Updates:
2026-10-12 Gaia hints at a hidden companion star (RUWE 3.3)
2026-10-12 Found by the automatic search in TESS sector 32
The signal
| Type | Eclipsing binary |
| Status | Probably known |
| Period (days) | 0.464129 |
| Period source | hunt.py on TESS QLP sector 32 |
| Eclipse / dip depth | 3.7% |
| Amplitude | 5.7% |
| Data used | TESS sector 32 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 282 (~918 light years) |
| Temperature (Gaia) | 4,721 K |
| Size (Gaia) | 0.65 x the Sun |
| Luminosity (Gaia) | 0.19 x the Sun |
| Colour, Gaia BP-RP | 1.28 |
| RUWE (Gaia) | 3.26 - hints at a hidden companion star |
| Gaia G mag | 14.06 |
| TESS mag | 13.42 |
Names & neighbours
| TIC ID | 21745782 |
| Gaia DR3 ID | 4804153471582597248 |
| SIMBAD name | not in SIMBAD |
| Nearest known variable | SSS_J055345.7-411110 (EA, P = 0.46415 d), 34" away (same period!) |
| RA (deg) | 88.4451 |
| Dec (deg) | -41.1774 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-12 |
| Last update | 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
- TIC21745782_s0032.fits 205 KB
- TIC21745782_s0032.png 78 KB
- thumb.png 120 KB
- meta.json
