Something to image in the strong moonlight. Mizar (Zeta Ursae Majoris) has 2 partners: the brighter one you can see is 14 arcsecs away at mag 4 but there’s also one at 0.04 arcsecs separation and mag. 2 that we can’t see separately. Alcor is a binary too with an 8th magnitude red dwarf companion, 1 arcsec away from the primary.
|Object ID||Mizar, Alcor|
|Telescope||250mm f4.8 Newtonian|
|Camera||Atik 460EX @-15C
Baader RGB filters
|Exposure(s)||3x30s ea RGB 1×1|
Well I didn’t manage the occultation because of really bad weather – very windy and sleet blowing into the dome and telescope tube.
Got an image just before occultation.
2s exposure 1×1 TR filter
|Object ID||SN 2020ue
|Details||2020-01-19 01:12:57 UT
Muniwin gives mag. as 12.56
RA = 12 42 47
DEC = +2 39 35
FWHM = 2.77 pxl
Sky = 1708.31 ADU
Sky dev. = 50.19 ADU
Net intensity = 94384.6 ADU
Noise = 271.5 ADU
S/N ratio = -25.4 dB
Brightness = 12.5627 mag
Error = 0.0031 mag
|Telescope||250mm f4.8 OO Newtonian|
|Camera||Atik 460EX @-15C|
|Exposure(s)||5x120s 2×2 TR|
So – because there’s no night in Scotland from May to August, I went south to the Languedoc hills. Sainte-Polycarpe in the Aude region to be precise. First real use of my Skywatcher Star Adventurer mount. Great fun, still a lot to learn, but got some decent images. Also made a fun little video story of my holiday in a beautiful region of France.
23:15 UT 21 June 2019
Samsung S8 mobile camera
First supernova for me.
|Object ID||SN 2018 ivc in M77
Type II supernova
|Details||2018-12-03 22:10 – 22:39 UT|
|Telescope||250mm f4.8 Newtonian, MPCC, IDAS P2|
|Camera||Atik 460EX at -20C|
|Exposure(s)||L 10x90s 1×1|
Everyone’s favourite double star is now officially not a binary system according to the latest GAIA data release. This is just to show that I don’t care – it’s still the best.
|Object ID||Albireo, Beta 1,2 Cygni|
|Details||2018-08-23 20:57 – 21:00 UT|
|Telescope||200mm Newtonian f5|
|Camera||ZWO ASI290MC, IR/UV block|
|Exposure(s)||21 x 5s with 5s delay between|
|Processing||Nebulosity 3, Photoshop|
One of the best I’ve seen. Almost overhead too.
|Object ID||Noctilucent Clouds|
|Details||2018-06-18 23:12 UT|
|Exposure(s)||1.6s @ f3.5 ISO 400|
First sighting this year and one of the very earliest to appear on Twitter.
Venus at the bottom with Castor and Pollux above. ß Aurigae (Menkalinan) to the upper right.
|Object ID||Noctilucent Clouds|
22:52 UT, 22:53 UT
|Telescope||Kit lens 27mm at f4
|Exposure(s)||ISO 400 1.6s|
Just for test purposes but quite fun. Focus not spot on though.
|Object ID||Mizar and Alcor|
|Details||Double star(s) Ursa Major|
|Telescope||RC8 at f/8|
|Camera||Atik 460EX (-15C) and SX filter wheel
IDAS P2 LPR filter
|Exposure(s)||RGB 6x10s each 2×2
darks, no flats or bias
|Capture||APT, no guiding|
|Processing||Stacked in Nebulosity, processed in Photoshop|
A very close conjunction.
|Object ID||Jupiter and Mars in conjunction|
|Details||A very close conjunction, less than 14′ between the two planets. Poor seeing and very low altitude <15degrees|
|Date/Time||2018-01-7 05:47UT, Inset 06:03UT|
|Telescope||C80ED @ f7.5|
|Exposure(s)||30s, inset 0.6s
no darks, flats or bias
|Processing||Processed in Photoshop|
Taken in the hills along the Thieves Road near West Linton.
Single 25s image RAW ISO 800 18mm f9