Comet C-62P/Tsuchinshan62P/Tsuchinshan, also known as Tsuchinshan 1, is a periodic comet first discovered January 1st 1965 at the Purple Mountain Observatory in Nanking.[6] It last came to perihelion on 25 December 2023 at around apparent magnitude 8,[2] and was then 0.53 AU (79 million km) from Earth and 110 degrees from the Sun.
https://en.wikipedia.org/wiki/62P/Tsuchinshan-------------------------------------------------------------------
Maurizio had the opportunity to do two sessions with this comet in the backyard. Visibility was not very good and is the reason for the short exposure time used. This image is the first one done on December 16th 2023.
In the processing, the star base was made in DSS and also the stack of the comet alone where I proceeded to clean the faint strikes left by the stars. The same procedure was also done in Siril, with the difference that in Siril I can produce a stack of only the starless comet and therefore much cleaner.
The stack that resulted from the comet alone shows an internal reflection that we are trying to correct since despite all the measures that Maurizio has taken to avoid it, it continues to appear. We are almost concluding that it can be derived from the coma corrector that is used.
Both solo-comet stack results were worked in Ps and treated in Raw Camera where white, dehaze, clarity and Topaz denoise were applied. Then the combination of both results was done in the same percentage layer and the layer of only stars was added for the final image. Because the comet only has a very slight tail, we proceeded to crop the frame and generate the .jpg at 125%.
Final observation:
In the fulframe image of the normal stack to obtain the stars, the background shows several galaxies. However, in the upper right, a short continuous line appears close to a galaxy, see Revision C.
According to what we have read, the stationary satellites are orbiting between 20 thousand km to 36 thousand km high from Earth and move in the same direction -west to east- and take the same 24 hours to do and entire rotation once is placed.
Later I will expand the search process carried out in this regard and I thank Jeff for the help received.
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Update372 Palma (A893 QB) AsteroidTurn out is not a Satellite the strike line noticed in our fullframe image Revision C. Thanks the helpful guidance of a friend, in the
Revision D composite image you can see the results of the Tycho Tracker and PixInsight search engines where the Annotation of confirmed asteroid 372 Palma appears.
The composite Charts 'Orbital View' comes from Solar System Dynamics of Jet Propulsion Laboratory NASA and the Searching JPL Small-Body Database (SBDB) - identification Tool. Efemerides information from Heaven-Above and Spacereference.org.
372 Palma Facts- Is one of the largest main-belt asteroids. It is a B-type asteroid.
- It was discovered by Auguste Charlois on August 19, 1893, in Nice. It is thought to be named for the capital city of Majorca, an island in the Balearics (Spain), which are located south of France. It is one of seven of Charlois's discoveries that were expressly named by the Astromomisches Rechen-Institut (Astronomical Calculation Institute).
- Since 2000, it has been observed 14 times in an asteroid occultation event, a number of which produced multiple chords revealing the asteroid's size and shape. On September 13, 2018, it was revealed to be 120 miles long (193 kilometers long). https://en.wikipedia.org/wiki/372_Palma
- Categorized as a Main-belt Asteroid
- Not a Near Earth Object
- Not a Potentially Hazardous Object
- Palma is a large asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Palma as potentially hazardous because its orbit does not bring it close to Earth.
- Palma's orbit is 1.47 AU from Earth's orbit at its closest point. This means that there is an extremely wide berth between this asteroid and Earth at all times.
Physical Characteristics
- Diameter: 173.64200 km
- Magnitude: 7.41
- Albedo: 0.059
- Spectral type (Tholen): BFC
- Spectral type (SMASS): B
Derived Characteristics
- Orbit Period: 2,050 days (5.61 years)
- Avg. Orbit Speed: 16.77 km/s
- Aphelion Distance: 3.96 AU
- Perihelion Distance: 2.36 AU
- Rotation Period: 8.57 hours
- Approx. Composition: hydrogen, nitrogen, ammonia and iron.
https://www.spacereference.org/asteroid/372-palma-a893-qbhttps://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=20000372https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=20000372&view=VOPCWe thank everyone for their visit and wish you all Clear Skies.
Processed February 2024
https://twitter.com/AstroOtus/status/1764046868592390336 
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