Finally, clear skies. After an unseasonable cloudy and wet autumn in SE Qld, the skies opened up last night, 27th May 2022 so I dusted off the gear and set up in the back garden.
It was like beginning all over again, it had been some 4 or 5 months since I last used the gear.
After re-learning how everything fits together, I slewed to Asteroid 7335 1989 JA and was pleasantly surprised at how bright it was at around magnitude 12.
I grabbed 59 x 30 sec exposures with the Tak Mewlon 210 F11.5, Tak x0.8 Reducer and QHY268M camera, at a fl=2130mm (calculated).
Asteroid data
Diameter = 1.8 km
Distance from Brisbane = 10.5 LD (Lunar Distances)
Speed = 13.1 Km/sec
Earth Distance (au): 0.03
Sun Distance (au): 1.03
RA Rate (arcsecs/sec): -0.793584
Dec Rate (arcsecs/sec): -0.366786
Constellation: Centaurus
Imaging Data
2022-May-27 (UT)
2022-05-27T12:54:00Z to 2022-05-27T13:38:00Z
Data for Full Size/Resolution image stack
Centre (RA, Dec): (171.626, -44.795)
Centre (RA, hms): 11h 26m 30.347s
Centre (Dec, dms): -44° 47' 41.080"
Size: 37.9 x 25.3 arcmin
Radius: 0.380 deg
Pixel scale: 0.364 arcsec/pixel
Orientation: Up is 90.6 degrees E of N
I have included a full frame shot re-sampled down to 1280 pixels wide and a full resolution 1280 pixel crop of a central region showing the trail.
The screen capture is from The Sky X Pro.
Cheers
Dennis