TIC 327712163

Transit candidateKnown to NASA (TOI)

Rare & notable finds

A notable find: not unheard of, but the kind of system astronomers are glad to have more of. How these checks work →

Already known: on NASA's TESS list as CTOI 327712163.01 (PC); in SIMBAD as TYC 9324-987-1 (*). The rare-find check confirms what is on record - still nice, but not a new discovery.

Ultra-short-period planet notable
One orbit takes 9.4 hours - ultra-short-period planets are found around only ~0.5% of stars.

Checked, nothing found (9)

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

Checked 2026-10-11 17:49 on NVIDIA GeForce RTX 4070, using every TESS sector of this star. All results (.json)

Notes

Already known to NASA: CTOI 327712163.01 (PC). Notable, already known: Ultra-short-period planet (on NASA's TESS list as CTOI 327712163.01 (PC); in SIMBAD as TYC 9324-987-1 (*)). Already on NASA's TESS list as CTOI 327712163.01 (PC). Found automatically by hunt.py in TESS sector 27 (flagged in 2 sector(s)). Detection score 106.7. 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: 2026-10-12 Rare-find check: Ultra-short-period planet 2026-10-12 Gaia hints at a hidden companion star (RUWE 2.2) 2026-10-12 Found on NASA's list of TESS planet candidates: CTOI 327712163.01 (PC) 2026-10-12 Planet check: Already known to NASA: CTOI 327712163.01 (PC) 2026-10-12 Found by the automatic search in TESS sector 27

The signal

Type	Transit candidate
Status	Known to NASA (TOI)
Period (days)	0.390348
Period source	hunt.py on TESS QLP sector 27
Eclipse / dip depth	0.8%
Amplitude	0.9%
Data used	TESS sector 27 (QLP)

Planet check

Verdict	Already known to NASA: CTOI 327712163.01 (PC) ExoFOP check plot all test results light curve data
Size if it's a planet	~11.8 Earth radii (~1.05 Jupiter)

The star (Gaia & TESS)

Distance (pc)	406 (~1,324 light years)
Colour, Gaia BP-RP	0.74
RUWE (Gaia)	2.16 - hints at a hidden companion star
Gaia G mag	11.89
TESS mag	11.5

Names & neighbours

TIC ID	327712163
Gaia DR3 ID	6396135120488013056
SIMBAD name	TYC 9324-987-1 [*]
Nearest known variable	none within 5'
RA (deg)	331.555
Dec (deg)	-68.8999
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.

How to read this diagram →

Data files

Download everything (.zip)