TIC 288507910

Transit candidateRare, already known

Rare & notable finds

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

Already known: in SIMBAD as TYC 4582-936-1 (*); catalogued variable star nearby: Gaia DR3 2296228918196704512 (S), 259" away; in the TESS eclipsing-binary catalogue (Prsa et al. 2022) as TIC 0288507910. The rare-find check confirms what is on record - still nice, but not a new discovery.

Lopsided transit hint
The start of the transit is deeper than the end: a dust tail (disintegrating planet), rings, a fast-spinning star, or a blend.
Dimming beside the transit hint
On average the star is 202 ppm dimmer just before and after the transit (9.1 sigma): what a moon (or ring/dust) travelling with the planet would cause. Instrument trends can do this too.

Checked, nothing found (10)

Microlensing (rogue planet?) · Exocomet-shaped dip · Habitable zone & size · Transit timing (TTV) · Transit duration (TDV) · Changing transit depth · Trojan companions (L4/L5) · More planets in the system · Self-lensing binary · Type of star

Checked 2026-10-11 16:31 on NVIDIA GeForce RTX 4070, using every TESS sector of this star. All results (.json)

Notes

Probably noise or an instrument effect. Rare, already known: Lopsided transit; Dimming beside the transit (in SIMBAD as TYC 4582-936-1 (*); catalogued variable star nearby: Gaia DR3 2296228918196704512 (S), 259" away). Found automatically by hunt.py in TESS sector 24 (flagged in 8 sector(s)). Detection score 255.7. 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 Planet check: Probably noise or an instrument effect 2026-10-11 Rare-find check: Lopsided transit; Dimming beside the transit 2026-10-11 Found by the automatic search in TESS sector 24

The signal

Type	Transit candidate
Status	Rare, already known
Period (days)	8.35093
Period source	hunt.py on TESS QLP sector 24
Eclipse / dip depth	3.7%
Amplitude	0.2%
Data used	TESS sector 24 (QLP)

Planet check

Verdict	Probably noise or an instrument effect ExoFOP check plot all test results light curve data
Size if it's a planet	~47.2 Earth radii (~4.21 Jupiter) - too big for a planet

The star (Gaia & TESS)

Distance (pc)	551 (~1,798 light years)
Colour, Gaia BP-RP	0.72
RUWE (Gaia)	0.83 - fits a single star
Gaia G mag	11.25
TESS mag	10.87

Names & neighbours

TIC ID	288507910
Gaia DR3 ID	2296222802163262208
SIMBAD name	TYC 4582-936-1 [*]
Nearest known variable	Gaia DR3 2296228918196704512 (S), 259" away
RA (deg)	271.538
Dec (deg)	81.9416
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)