TIC 229451831

Transit candidateRare, already known

Rare & notable finds

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

Already known: catalogued variable star nearby: Gaia DR3 2242698331309986688 (ROT), 278" away. The rare-find check confirms what is on record - still nice, but not a new discovery.

Transit duration (TDV) hint
The transit length changes from one transit to the next beyond the errors - a sign of a wobbling orbit (moon) or a precessing orbit.
Single transit of another planet notable
Besides the known planet: one transit-like dip at BTJD 2925.82, 14.4 h long and 0.64% deep (~17.6 Earth radii). For a dip this long the orbit must take at least ~67 days: a cold, long-period planet - rare in TESS data.

Checked, nothing found (10)

Microlensing (rogue planet?) · Exocomet-shaped dip · Habitable zone & size · Transit timing (TTV) · Changing transit depth · Lopsided transit · Dimming beside the transit · More planets in the system · Self-lensing binary · Type of star

Checked 2026-10-11 17:01 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: Transit duration (TDV); Single transit of another planet (catalogued variable star nearby: Gaia DR3 2242698331309986688 (ROT), 278" away). Found automatically by hunt.py in TESS sector 21 (flagged in 13 sector(s)). Detection score 85.1. 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. Updates: 2026-10-11 Planet check: Probably noise or an instrument effect 2026-10-11 Rare-find check: Transit duration (TDV); Single transit of another planet 2026-10-11 Gaia hints at a hidden companion star (RUWE 2.1) 2026-10-11 Found by the automatic search in TESS sector 21

The signal

Type	Transit candidate
Status	Rare, already known
Period (days)	1.11558
Period source	hunt.py on TESS QLP sector 21
Eclipse / dip depth	1.5%
Amplitude	1.2%
Data used	TESS sector 21 (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	~26.6 Earth radii (~2.37 Jupiter) - too big for a planet

The star (Gaia & TESS)

Distance (pc)	1,010 (~3,293 light years)
Temperature (Gaia)	6,083 K
Size (Gaia)	2.13 x the Sun
Mass (Gaia)	1.41 x the Sun
Luminosity (Gaia)	5.61 x the Sun
Colour, Gaia BP-RP	0.83
RUWE (Gaia)	2.12 - hints at a hidden companion star
Gaia G mag	13.05
TESS mag	12.62

Names & neighbours

TIC ID	229451831
Gaia DR3 ID	2242699435119525760
SIMBAD name	not in SIMBAD
Nearest known variable	Gaia DR3 2242698331309986688 (ROT), 278" away
RA (deg)	294.252
Dec (deg)	65.6912
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)