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C/2023 A3 (Tsuchinshan-ATLAS)


NASA/JPL elements
IAU/MPC elements


On 2024 Jul 06 21h39 UT by Nicolas Biver


(Copyright Nicolas Biver)

Coma Total magnitude (m1)10.2
Aperture radius used for m11 '
Nuclear magnitude (m2)12.5
Aperture radius used for m26 "
Coma diameter1.4 '
Coma condensation degree (DC)6
Tail length0.15 °
Tail position angle (PA)110 °
r (dist/Sun) 1.796 AU
d (dist/Earth) 1.996 AU
Instrumental configurationConfig1
InstrumentDobson 407mm F/D 4.3
Instrument typeNewton
Instrument aperture (0=naked eye)407 mm
Instrument focale length1750 mm
Instrument focale/diameter4.29
Filter(s)None
CameraSONY alpha7S
SensorDC
Sensor size36*24 mm2
Sensor pixels number4240*2832
Sensor temperature12 °C
Binning2x2
Mountdobson sur table equatoriale JMI
MotorizationYes
AutoguideNo
Exposure total time67.5 s
Exposure details45x1+45x0.5s
Sky transparency (naked eye max mag)4.5
Seeing2
Moon phase180 °
Moon elongation90 °
Air mass9.5
LocationBoulonville
Reference stars catalogAPASS
Used softwaresIRIS
Resulting picture sampling (scale)2 "/pix
Image processingbinning, flat, alignement, somme, retrait gradient
Remarks or commentsMagnitudes sur format RAW (44.5s) Ciel très crépusculaire
Observation submission date2024 Jul 08 00h31m12s

(Record n° 28595)

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