Jump to content

The Stargazing Thread!


Endersmens

Recommended Posts



The best I could manage.
Shooting for about 7 hours solid from midnight through sunrise.
Conditions were perfect, however it was my first time doing time lapses of any sort and somewhat of a learning experience.
I'd have done a lot differently.
Having only two 16gb cards limited me a lot; I had to make shorter, lower framerate time lapses than I would have liked.
Fairly pleased with my exposures however, which is always going to be tricky when the light levels change this much while the camera is set to a fixed exposure throughout.
I aimed to overexpose the fully lit moon enough that at peak eclipse it would be correctly exposed, and I think I pretty much nailed that.
Link to comment
Share on other sites

  • 3 months later...

Greetings, finally got a decent EQ mount for my scope, heres a test shot of the Orion nebula.
full moon was up unfortunately, so rather a lot of light pollution obscuring the dim details.
68 1min 20sec exposures with autoguiding, full moon was preventing me from using a longer exposure

Spoiler

rdxTX1j.jpg


 

Link to comment
Share on other sites

12 hours ago, Rareden said:

Greetings, finally got a decent EQ mount for my scope, heres a test shot of the Orion nebula.
full moon was up unfortunately, so rather a lot of light pollution obscuring the dim details.
68 1min 20sec exposures with autoguiding, full moon was preventing me from using a longer exposure

  Hide contents

rdxTX1j.jpg


 

Absolutely amazing @Rareden!

Link to comment
Share on other sites

22 hours ago, Rareden said:

Greetings, finally got a decent EQ mount for my scope, heres a test shot of the Orion nebula.
full moon was up unfortunately, so rather a lot of light pollution obscuring the dim details.
68 1min 20sec exposures with autoguiding, full moon was preventing me from using a longer exposure

  Hide contents

rdxTX1j.jpg


 

 

very nice photo for a beggining. as for the exposure once light pollution from the moon is limmited (i usually start and stop photographing once the moon is 75% full) go up to 5 or 10 minutes. also if you are good at proccessing you can take at about 25 photos of 30 seconds in order to blend the core of orion nebula to the 5 or 10 minute photo and thus not having the core of the nebula overexposured. what equipment do you use?

Edited by kookoo_gr
Link to comment
Share on other sites

I have a celestron 8" scope with a f6.35 focal reducer, Celestron AVX mount, off axis guider with a nexguide attached and a Infrared modified canon 600d as well as a 6D for non nebula shots.
yes city light pollution was a factor, i was just in my backyard, i usually try to get at least 40km away from a city when doing astrophotography 

Edited by Rareden
Link to comment
Share on other sites

10 hours ago, Shpaget said:

@Rareden, what kind of telescope was this taken with? It's amazing! Also, what was the urban light pollution situation? How far from a city you needed to go to get this view?

That is a beautiful photo.  But you can't see that kind of detail with only your eyes.  You can, however see it pretty well with a decent telescope, and the darker the skies, the better.

 

I saw this with my old Meade 8" newt a few weeks ago and was blown away at the detail.  I had never seen it so well before.

Link to comment
Share on other sites

On 02/07/2015 at 10:22 AM, kookoo_gr said:

I use an RC8'' on an HEQ5 Pro mount or a skywatcher ED 80 for deep sky imaging along with a cooled CCD camera, for planetary imaging or obsering i use a skywatcher dob 8". I live at a a Rural/suburban transition area so i can easily photograpnh many DSO's once the wheather allows it. Here are some photos i have taken over the years

M42

9b1c8083a44110bab227f261a6a66bbf.1824x0_q100_watermark_watermark_opacity-20_watermark_position-6_watermark_text-Copyright%20Stavropoulos%20K..jpg

The Horsehead Nebula

ebaa5485c1483a4a18b67ed3e18a3bce.1824x0_q100_watermark_watermark_opacity-20_watermark_position-6_watermark_text-Copyright%20Stavropoulos%20K..jpg

Veil nebula

dbc49be36d9d595a70d61e803266b011.1824x0_q100_watermark_watermark_opacity-20_watermark_position-6_watermark_text-Copyright%20Stavropoulos%20K..jpg

Saturn

73bf0e757dc813f3ad768c107b180a22.620x0_q100_watermark_watermark_opacity-20_watermark_position-6_watermark_text-Copyright%20Stavropoulos%20K..jpg

Mars

d4a15dde82c13ba8712f80fd6f9f8078.620x0_q100_watermark_watermark_opacity-20_watermark_position-6_watermark_text-Copyright%20Stavropoulos%20K..jpg

Jupiter

bff28790e888a45c2dbca66561a6083a.620x0_q100_watermark.jpg

M106

nos.jpg

Milky Way Panorama

6e2671dfbdd2f52b2b86b693e6142cc3.1824x0_q100_watermark_watermark_opacity-10_watermark_position-6_watermark_text-Copyright%20kookoo_gr.jpg

NGC7635 The Bubble Nebula

nos.jpg

M16 The Eagle Nebula

37f9abff22999396f60cc60cbd0cbedb.1824x0_q100_watermark_watermark_opacity-10_watermark_position-6_watermark_text-Copyright%20kookoo_gr.jpg

M13

d389a1517b340df334969b690fae4d71.1824x0_q100_watermark_watermark_opacity-10_watermark_position-6_watermark_text-Copyright%20kookoo_gr.jpg

Venus

043d065d699cad20c0ee7e2a707dd2c2.620x0_q100_watermark_watermark_opacity-20_watermark_position-6_watermark_text-Copyright%20Stavropoulos%20K..jpg

Jupiter Animation

7ae45ce0-9933-44e1-97ab-19a2f61f4bd3.gif

Jupiter Animation

31726261-dce8-45fd-9e38-879a2bf499a5.gif

and here are more pictures i have taken http://www.astrobin.com/users/kookoo_gr/

- - - Updated - - -

For those that want to start observing the night sky with their eyes or any other optic device a good program to use is Stellarium. It's a free planetarium program and once you enter the coordinates of the observing site you can have an idea of what to expect to see at various hours of the night.

Wait, those nebulas are actually in pink and blue? I thought those images on the NASA website were in false color...

Link to comment
Share on other sites

16 hours ago, Matuchkin said:

Wait, those nebulas are actually in pink and blue? I thought those images on the NASA website were in false color...

 Correct me if im wrong but I think the colours you see In a nebula are mainly from the type of gas being ionized if its a emission nebula like orion, pink/red is hydrogen usually with a hydrogen alpha pass as well if they are using a infrared sensitive CCD, blue  is nitrogen and green is oxygen?.  
I think the colours can be determined with a spectrometer or a Discharge tube.

Link to comment
Share on other sites

1 minute ago, Rareden said:

 Correct me if im wrong but I think the colours you see In a nebula are mainly from the type of gas being ionized if its a emission nebula like orion, pink/red is hydrogen usually with a hydrogen alpha pass as well if they are using a infrared sensitive CCD, blue  is nitrogen and green is oxygen?.  
I think the colours can be determined with a spectrometer or a Discharge tube.

But that guy said he didn't use any spectrometers, filters, etc...

Link to comment
Share on other sites

18 hours ago, Matuchkin said:

Wait, those nebulas are actually in pink and blue? I thought those images on the NASA website were in false color...

A friendly request - please do not quote the full post for a reply of just one line :)

Link to comment
Share on other sites

2 hours ago, Matuchkin said:

But that guy said he didn't use any spectrometers, filters, etc...

you dont need them, a spectrometer is used to identify what wavelengths of light are coming from the nebula, filters will block certain wavelengths.
Every element gives off a certain wavelength of light when ionized which the camera picks up during a long exposure, you can then identify what elements are in the nebula based on the colors/wavelengths being emitted 

Link to comment
Share on other sites

Got a shot of the Eta Carinae core last night. stack of 21 3min 20sec exposures.
The weird distortion in the stars towards the bottom of the image is due to the nature of my telescopes mirror unfortunately.

 

Spoiler

bMxTExU.jpg

 

Edited by Rareden
Link to comment
Share on other sites

2 hours ago, cubinator said:

I tried looking at Uranus today, but couldn't see anything due to light pollution. I'll have to try again some other time of year, when it appears in the clear east instead of the hazy west. :(

Uranus will be rather difficult to see as well due to its distance from us, probably will be a faint green dot.

Link to comment
Share on other sites

7 hours ago, Rareden said:

Uranus will be rather difficult to see as well due to its distance from us, probably will be a faint green dot.

With the telescope I'm using, it should be visible as a small disk, a little smaller than Saturn. I'll have to go out in November-December, when Uranus is rising the evening to avoid the city lights in the west. Hopefully I can find a day that's not so cold my fingers freeze after fifteen minutes of searching...

Link to comment
Share on other sites

  • 4 weeks later...
On 2/1/2016 at 2:33 AM, cubinator said:

With the telescope I'm using, it should be visible as a small disk, a little smaller than Saturn. I'll have to go out in November-December, when Uranus is rising the evening to avoid the city lights in the west. Hopefully I can find a day that's not so cold my fingers freeze after fifteen minutes of searching...

Nice, whats the focal length of it?

Link to comment
Share on other sites

21 hours ago, Rareden said:

Nice, whats the focal length of it?

Not sure about the specs, it's enough to see the bands on Jupiter and Saturn's rings pretty well. I hardly remember ever looking at the rocky planets with it, but it could probably see the crescent of Venus, and maybe some features on Mars. It's an old Celestron, orange, and I don't have the manual or anything within easy access.

Edit: Hey, whaddaya know, it's printed on the side:     Aperture 8 in     f/10     efl 80 in
Before I saw that (all the time up until now) I was just guessing, I'll have to check with Stellarium and see just how well I can actually see it!

Edit 2: It'd be barely distinguishable from the other stars.

BTW it seems to be a catadioptric telescope.

Edited by cubinator
Link to comment
Share on other sites

This thread is quite old. Please consider starting a new thread rather than reviving this one.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...