TIC 155916287

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 CTOI 155916287.01 (PC); in SIMBAD as TYC 3051-391-1 (SB*); catalogued variable star nearby: Gaia DR3 1586042503706045056 (RS), 292" away. The rare-find check confirms what is on record - still nice, but not a new discovery.

Exocomet-shaped dip hint
A dip at BTJD 2682.70 that drops fast and recovers slowly (0.46% deep) - the shape of a comet's dusty tail passing the star (like Beta Pictoris).

Checked, nothing found (9)

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

Checked 2026-10-11 16:46 on NVIDIA GeForce RTX 4070, using every TESS sector of this star. All results (.json)

Notes

Already known to NASA: CTOI 155916287.01 (PC). Rare, already known: Exocomet-shaped dip (on NASA's TESS list as CTOI 155916287.01 (PC); in SIMBAD as TYC 3051-391-1 (SB*)). Already on NASA's TESS list as CTOI 155916287.01 (PC). NOTE: SIMBAD already lists this star (TYC 3051-391-1) as type SB*, so it may be known after all - check the SIMBAD references. Found automatically by hunt.py in TESS sector 23 (flagged in 3 sector(s)). Detection score 148.0. 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: Exocomet-shaped dip 2026-10-11 Found on NASA's list of TESS planet candidates: CTOI 155916287.01 (PC) 2026-10-11 Planet check: Already known to NASA: CTOI 155916287.01 (PC) 2026-10-11 Found by the automatic search in TESS sector 23

The signal

Type	Transit candidate
Status	Rare, already known
Period (days)	6.05158
Period source	hunt.py on TESS QLP sector 23
Eclipse / dip depth	2.6%
Amplitude	0.2%
Data used	TESS sector 23 (QLP)

Planet check

Verdict	Already known to NASA: CTOI 155916287.01 (PC) ExoFOP check plot all test results light curve data
Size if it's a planet	~19.3 Earth radii (~1.72 Jupiter)

The star (Gaia & TESS)

Distance (pc)	271 (~884 light years)
Temperature (Gaia)	5,822 K
Size (Gaia)	1.15 x the Sun
Mass (Gaia)	1.00 x the Sun
Luminosity (Gaia)	1.36 x the Sun
Colour, Gaia BP-RP	0.84
RUWE (Gaia)	1.02 - fits a single star
Radial velocity (Gaia)	speed changes by 122 km/s - likely an orbiting pair
Gaia G mag	11.63
TESS mag	11.19

Names & neighbours

TIC ID	155916287
Gaia DR3 ID	1585947494733568128
SIMBAD name	TYC 3051-391-1 [SB*]
Nearest known variable	Gaia DR3 1586042503706045056 (RS), 292" away
RA (deg)	226.783
Dec (deg)	44.6091
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)