Imaging with the 130pds

[Susaron]

[richyrich_one]

Reprocess of October 2016 data

35x300

[tony8690]

17 hours ago, Susaron said:

Looks a lot sharper now! Thanks

[Adam J]

Anyone know if a badder click lock will allow you to reach focus on a 130PDS? It moves the camera out slightly by the looks of it.....

[Uranium235]

3 hours ago, Adam J said:

Anyone know if a badder click lock will allow you to reach focus on a 130PDS? It moves the camera out slightly by the looks of it.....

Unfortunately not, it will move the camera out way too far. Its better used for EPs to be honest.

[spillage]

I have one of these compression rings and have added an extra screw.

[dyfiastro]

two from a few nights ago. I really must invest in PI
10x300s@ISO800 600D, Stacked with DSS and processed in PS.

Single 300s@ISO800

Edited November 3, 2017 by dyfiastro
edit text

[tooth_dr]

This thread is just jam packed with amazing images! Thanks everyone for posting!

 

@dyfiastro that’s a super widefield of the bubble neb and friends!

[dyfiastro]

9 minutes ago, tooth_dr said:

This thread is just jam packed with amazing images! Thanks everyone for posting!

 

@dyfiastro that’s a super widefield of the bubble neb and friends!

Yes thanks very much.

Full designations are as follows

Edited November 3, 2017 by dyfiastro

[Uranium235]

Just revisiting some old 130pds data with 2017 processing methods, hard to believe just 80min of Ha went into this

 

[sagramore]

Is everyone having the same awful awful weather as me - given all the processing of old data going on?

I haven't had my scope out in anger much this year AT ALL so far....

[spillage]

@sagramore sorry might be me...just brought some new kit. It has allowed me to lag my 130 so fingers crossed I get to try it all out.

[toxic]

thats a beauty Rob

[Uranium235]

9 hours ago, spillage said:

@sagramore sorry might be me...just brought some new kit. It has allowed me to lag my 130 so fingers crossed I get to try it all out.

You know, I'm not sure whether insulation on a telescope is the way forward. Surely all that does is lengthen the cool down process?

If you get a bit of ice on it after a long winter session, I don't see that as a bad thing. If anything, the colder it gets - the better it performs.... just don't try touching it with bare hands or licking it...lol  

 

[spillage]

 

3 hours ago, Uranium235 said:

just don't try touching it with bare hands or licking it...lol

 Haha, I used to work in a -24 warehouse. Lost count the amount of times I put my pencil in my mouth and got it stuck. Or ran in without my cold gear to do a stock count only to find my biro had frozen

I keep my scope outside so do not really need any cool down time and it does look quite cool in its silver jacket..

[Gerry Casa Christiana]

On 05/11/2017 at 00:20, Uranium235 said:

Just revisiting some old 130pds data with 2017 processing methods, hard to believe just 80min of Ha went into this

 

Hello 

Can I ask did you use oxygen for the blue as well? Great picture I want to revisit it because I tried without guiding and hope to get a better result. 

 

[Uranium235]

1 hour ago, Gerry Casa Christiana said:

Hello 

Can I ask did you use oxygen for the blue as well? Great picture I want to revisit it because I tried without guiding and hope to get a better result. 

 

Yes, I used OIII for that image (same amount, 80min). But the blue is derived from the cannistra bilcolour process as detailed here:

http://www.starrywonders.com/bicolortechniquenew.html

It takes a bit of practice, and usually needs some selective colour adjusment in Ps to shift magenta to blue. Also, it helps if you remove all of the stars from the colour layer before blending with Ha luminance in order to prevent blue halos.

[Galen Gilmore]

A bit reluctant to post this as it didn't quite work out as intended. But if I don't share I have nothing else to post.

M45 - 50x30 seconds

Its not terrible, but I could've gone for long exposures. I was scared that the images would be too bright without a LP filter

[Gerry Casa Christiana]

Still good!  The next time check your focus a little more. You have double defraction spikes which is usually just being slightly off focus.  

All the best 

[Galen Gilmore]

1 hour ago, Gerry Casa Christiana said:

Still good!  The next time check your focus a little more. You have double defraction spikes which is usually just being slightly off focus.  

All the best 

Yea I realize that I was off focus. I was imaging M31 before I started with M45, and the focus was spot on for m31. I think that focus slipped before I started imaging M45.

[Stub Mandrel]

Go for the longer exposures Galen, 5-minute exposures turned out OK for me on the Pleiades last night:

[Galen Gilmore]

18 minutes ago, Stub Mandrel said:

Go for the longer exposures Galen, 5-minute exposures turned out OK for me on the Pleiades last night:

Yea I agree. I was doing 2 minute exposures before, but I was getting a horrible gradient. I though shorter subs would get rid of it or reduce it, but it didn't. Would a LP filter help reduce these gradients?

[Stub Mandrel]

35 minutes ago, Galen Gilmore said:

Yea I agree. I was doing 2 minute exposures before, but I was getting a horrible gradient. I though shorter subs would get rid of it or reduce it, but it didn't. Would a LP filter help reduce these gradients?

Possibly, I use a cheap (£10) moon+skyglow filter and it helps a lot.

I still had a big yellow tint on the top edge, which I think was caused by my workshop lights

[spillage]

First time mono with my 130pds, asi1600.

15 sec exposure at unity. Messed up and my focus was out and my L,Ha,O111 and S11 failed.

R x 20

G x 20

B x 20

Flats, Bias but no flats.

[dyfiastro]

Evening everyone

I managed to grab what could have been my best run of the year last night.
After a minor equipment issue (the arduino board running my focuser died) I managed to get a good few hours of imaging done.

M33 - 12x300s @ ISO800

Iris Nebula - 15x300s @ ISO800

Elephants Trunk Nebula - 25x30s @ ISO800

These are far from perfect and I will be reprocessing these once I finally save enough for PI, I also intend to add more data to these as well