TIC 229536616

Transit candidateRare, already known

Rare & notable finds

Something unusual, worth a look - less certain than a significant find. How these checks work →

Already known: on NASA's TESS list as TOI 1297.01 (FP); in SIMBAD as GSC 04401-00193 (**); catalogued variable star nearby: Gaia DR3 1679498483805859968 (ROT), 247" away; SIMBAD lists GSC 04401-00193 also as TOI-1297. The rare-find check confirms what is on record - still nice, but not a new discovery.

Lopsided transit hint
The end of the transit is deeper than the start: a dust tail (disintegrating planet), rings, a fast-spinning star, or a blend.

Checked, nothing found (9)

Microlensing (rogue planet?) · Exocomet-shaped dip · Habitable zone & size · Transit timing (TTV) · Transit duration (TDV) · Changing transit depth · Dimming beside the transit · Trojan companions (L4/L5) · Type of star

Checked 2026-10-11 16:49 on NVIDIA GeForce RTX 4070, using every TESS sector of this star. All results (.json)

Notes

Already known to NASA: TOI 1297.01 (FP). Rare, already known: Lopsided transit (on NASA's TESS list as TOI 1297.01 (FP); in SIMBAD as GSC 04401-00193 (**)). Already on NASA's TESS list as TOI 1297.01 (FP). NOTE: SIMBAD already lists this star (GSC 04401-00193) as type **, so it may be known after all - check the SIMBAD references. Found automatically by hunt.py in TESS sector 21 (flagged in 4 sector(s)). Detection score 115.9. 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: 2026-10-11 Rare-find check: Lopsided transit 2026-10-11 Gaia hints at a hidden companion star (RUWE 4.1) 2026-10-11 Found on NASA's list of TESS planet candidates: TOI 1297.01 (FP) 2026-10-11 Planet check: Already known to NASA: TOI 1297.01 (FP) 2026-10-11 Found by the automatic search in TESS sector 21

The signal

Type	Transit candidate
Status	Rare, already known
Period (days)	3.93248
Period source	hunt.py on TESS QLP sector 21
Eclipse / dip depth	0.9%
Amplitude	0.2%
Data used	TESS sector 21 (QLP)

Planet check

Verdict	Already known to NASA: TOI 1297.01 (FP) ExoFOP check plot all test results light curve data
Size if it's a planet	~15.0 Earth radii (~1.34 Jupiter)

The star (Gaia & TESS)

Distance (pc)	455 (~1,485 light years)
Colour, Gaia BP-RP	0.67
RUWE (Gaia)	4.06 - hints at a hidden companion star
Gaia G mag	11.58
TESS mag	10.99

Names & neighbours

TIC ID	229536616
Gaia DR3 ID	1679498552524609664
SIMBAD name	GSC 04401-00193 [**]
Nearest known variable	Gaia DR3 1679498483805859968 (ROT), 247" away
RA (deg)	195.821
Dec (deg)	67.8234
Look it up	SIMBAD · VSX · ESASky · ExoFOP

Record

Found by	hunt.py (automatic)
Date	2026-10-11
Last update	2026-10-11

Where it sits among the stars

ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.

How to read this diagram →

Data files

Download everything (.zip)