Search found 23 matches
- Sat May 11, 2024 8:53 pm
- Forum: Astronomy Events & Observation Sessions
- Topic: Solar cycle 25
- Replies: 168
- Views: 90438
Re: Solar cycle 25
For a big Sunspot like 3664, I prefer white light..hehe.
- Fri May 10, 2024 9:54 am
- Forum: Astronomy Events & Observation Sessions
- Topic: Solar cycle 25
- Replies: 168
- Views: 90438
Re: Solar cycle 25
I saw the giant sunspot yesterday through a pair of binoculars. Very impressive. Haven't had a chance to observe in H-alpha yet.
- Mon Apr 29, 2024 9:29 am
- Forum: DIY Astronomy
- Topic: 3D printing mounting rings
- Replies: 2
- Views: 1013
Re: 3D printing mounting rings
Do you have your own design? If so, you can try a local printing shop to save on shipping.
Another way is to use a parcel forwarding service like Vpost
Another way is to use a parcel forwarding service like Vpost
- Fri Jan 05, 2024 12:10 pm
- Forum: Buy and Sell
- Topic: iOptron HAZ31
- Replies: 0
- Views: 5163
iOptron HAZ31
For sale is one of the latest strain wave mounts from iOptron, specifically the HAZ31, which has a carrying capacity of 15 kg while it weights less than 4 kg! As you can see from the pics below, it is very very compact. I have been using it as a travel/visual-only mount. It has travelled with me to ...
- Sat Nov 11, 2023 12:13 pm
- Forum: Buy and Sell
- Topic: WTS Baader maxbright binoviewer
- Replies: 2
- Views: 7120
Re: WTS Baader maxbright binoviewer
You can try using a Barlow or Baader OPCs, available in 1.25X, 1.7X, and 2.5X.
- Fri Sep 22, 2023 1:03 pm
- Forum: Equipment Discussions
- Topic: Does anyone know how much his scope cost? 21inch mirror must be expensive.
- Replies: 2
- Views: 5349
Re: Does anyone know how much his scope cost? 21inch mirror must be expensive.
Well, the mirror alone probably costs $20k. Then, all the custom parts that have to be machined, another $10k. The scope looks to have tracking capability, so another few thousands dollar there. In total, probably between $30k-$40k. The good news is you would only need to sacrifice only one of your ...
- Wed Jun 21, 2023 4:31 pm
- Forum: Buy and Sell
- Topic: WTS : iOptron AZ Mount Pro: S$1,050
- Replies: 2
- Views: 11637
Re: iOptron AZ Mount Pro: S$1,050
Sorry, off topic. I'm just curious about the wave equations in the background..hah
- Thu Jun 08, 2023 3:28 pm
- Forum: Equipment Discussions
- Topic: Which company is being liquidated?
- Replies: 1
- Views: 20903
Re: Which company is being liquidated?
Yes, it's OPT.
- Thu Feb 16, 2023 1:12 pm
- Forum: Buy and Sell
- Topic: WTB: Thousand Oaks or equivalent solar filter film
- Replies: 1
- Views: 5080
Re: WTB: Thousand Oaks or equivalent solar filter film
DM'd. Good time to view the sun this week! There are a couple of sunspots.
- Thu Jan 19, 2023 9:41 pm
- Forum: Reviews
- Topic: iOptron HAE 29 Strain Wave Gear Mount
- Replies: 16
- Views: 37679
Re: iOptron HAE 29 Strain Wave Gear Mount
Hi Alfred.
It weights only around 3 kg. I used their online calculator, probably not accurate. It's good to know the actual shipping fee is more reasonable. Thanks
It weights only around 3 kg. I used their online calculator, probably not accurate. It's good to know the actual shipping fee is more reasonable. Thanks