secondary mirror

 GSO 203 f5

Following the method here. Using this bit:

...to calculate an offset of 4.2mm giving  9,2 mm from the bottom edge of the back of the ellipse. I think...!

And of course, last but not...

dinosaur collection

2015

2024

 

graffiti

Spotted in Polop de la Marina.

The rot has well and truly set in...

533 first light

 95% moon and drifting haze.

The first target went ok:

open clusters ngc884 top with ngc869 in perseus
533c on q150    30x3min @ HCG100

The second target not so good. Many frames lost to drifting cloud and haze
far too close to the moon for comfort.

Alas, emission only. Gonna need a bigger telescope and longer frames. Anyway...

emission nebula ngc1579 northern trifid in perseus
533c on q150    18x3min @ HCG100

And with a little help from IA...

 

touptek 533

 After the disaster with the sv605, I was beginning to think I was doomed with anything smaller than aps-c. A pleasant surprize then when a Touptek 533c arrived. And just worked. 

Thank call out to MHzOutdoor for their excellent attention to detail and putting the client first. Rimini to Alicante in just three days. And to FedEx who took care of the delivery. I wish all online transactions could be this easy.

 

offset

For gain 100 and both low-noise-mode and HCG set under indi_toupbase, we found an offset of 64 worked fine:

First shot:

δ cassiopeiae ruchbah

touptek533 on q150    2x1s @ HCG 100

Perfect? No. Good enough? Yes.

broadcom wifi ubuntu

sudo apt install firmware-b43-installer
sudo apt install linux-firmware

restart

ctb1 ic410 ic405

ctb1 : abell 85

One of those which have you wondering if you're in the right place in the sky. Very faint. Discovered by way of being a radio emitter in 1960.

a single 5 minute frame. no se ve nada

supernova remnant ctb1 in cassiopeia
veTEC on q150    45x5min @ hcg100

As ctb1 descended too low for comfort, we had an hour or so left so...

emission regions ic410 left with ic405 in auriga
veTEC on q150    14x5min @ hcg100