C/2025 A6 (Lemmon) (Record n° 30117)
Orbital period : 1351.00 years
NASA/JPL elements
IAU/MPC elements
On 2025 Oct 10 04h54 UT by Nicolas Delaunoy
(Copyright Nicolas Delaunoy)Coma Total magnitude (m1) 6.27 Aperture radius used for m1 1.50 ' Nuclear magnitude (m2) 8.4 Aperture radius used for m2 10.9 " Right ascension 11 08 48.49 h m s Declination +42 23 01.2 ° ' " Instrumental configuration Config1 Instrument UNISTELLAR eQuinox2 Instrument type Newton Instrument aperture (0=naked eye) 115 mm Instrument focale length 450 mm Instrument focale/diameter 3.91 Filter(s) None Camera IMX347 Sensor CMOS Sensor size 7.1x5.3 mm2 Sensor pixels number 2088x1536 Binning 1x1 Mount ALT-AZ Motorization Yes Autoguide No Exposure total time 756 s Exposure details 189x4s Sky transparency (naked eye max mag) 4 Seeing 3 Moon phase 41 ° Moon elongation 88 ° Location Yerres, 91330, France Reference stars catalog UCAC-4 Used softwares Tycho tracker (master darks avec Siril) Resulting picture sampling (scale) 1.32 "/pix Observation submission date 2025 Oct 12 21h44m21s