C/2025 A6 (Lemmon) (Record n° 30237)
Orbital period : 1351.00 years
NASA/JPL elements
IAU/MPC elements
On 2025 Oct 27 18h02 UT by Nicolas Delaunoy
(Copyright Nicolas Delaunoy)Coma Total magnitude (m1) 4.25 Aperture radius used for m1 2.75 ' Nuclear magnitude (m2) 8.69 Aperture radius used for m2 10.8 " r (dist/Sun) 0.597 AU d (dist/Earth) 0.670 AU Right ascension 15 49 09.86 h m s Declination +12 35 37.0 ° ' " 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 48 s Exposure details 12x4s Sky transparency (naked eye max mag) 3 Seeing 3 Moon phase 112 ° Moon elongation 60 ° Location Yerres, 91330, France Reference stars catalog UCAC-4 Used softwares Tycho tracker (master darks avec Siril) Resulting picture sampling (scale) 1.32 "/pix Remarks or comments Ciel voilé, passages nuageux, prise de vue raccourcie... Observation submission date 2025 Oct 28 14h26m38s Observation modification date 2025 Oct 28 14h28m33s