Flying Bat Nebula and a faint OU4

Flying Bat Nebula and the Squid

Back to Sardegna, I got clear skies and five nice nights to shoot this crazy object.

I packed everything, as lighter as possible to avoid taxes on my luggages. I also have been careful not to put Allen keys in my hand bag … I learnt my lessons from last year : I paid 50 bucks for overweight and my Allen keys went to the trash bin at security …

I must admit, I was happy to use the Askar FRA300 telescope again … I got a lot of issues on my previous shots with the Hyperstar … especially focus. I found out that the plugin Hocus Focus in NINA (I like so much the way they named this plugin … sounds magic) has a bug with Hyperstar or RASA telescope … Anyway, I can rely on my focuser Sesto Senso2 from Primalucelabs (an Italian company doing great products) with my Askar. The Askar is very light and compact, so for my travels it is really a bargain.

I need to say that I’m not that happy about this picture … I expected to shoot more than five nights but the wind came strong the last week of holidays and it was impossible to shoot. I really wanted to shoot enough to catch the Giant Squid in the middle of the Flying Bat but you can’t win against the weather.

Again, I tried with both filters : the Askar D1 and D2 (D1 is about two narrow bands Hydrogen Alpha and Oxygen 3, D2 is about two narrow bands Oxygen3 and Sulfur2 … to simplify Ha and S2 gases are between Red and Orange, O3 is between Blue-ish and Green) … and I have been again disappointed by the D2 because it didn’t catch much; while the D1 shows pretty much everything of these two objects SH2-129 and OU4 (I need to dig into this weird catalog “OU” … another one … again …). I still kept the shots from the D2 to get more data.

Next object will happen in my living country … and I will take back the Hyperstar on a beautiful object I have in mind for some weeks … I’ll let you know :)

  • Exifs : Askar FRA300 / PegasusAstro Nyx-101 / PlayerOne Poseidon C Pro cooled at -10°C / Askar D1 HaOIII filter / Guiding System Askar 135mm scope with PlayerOne CeresM (! yes a new monochrome camera for guiding with wayyyy much sensitivity)

211 lights 300 seconds each (about 17 hours and 35 minutes exposure for final picture)

20 biases - 20 darks - 50 flats

Stacked with Pixinsight (WBPP)- Post-Treatment with Pixinsight with a minimum of processes.

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Thomas, a neighbour with the same interests