I’ve been getting more specific in using the “best” tool for the specific objects I intend to observe in a given session and with that in mind, I’m trying to figure out if a binocular telescope provides an additional capability that I don’t currently have.
I most often observe from a semi dark site (around NELM 4) that is about 35 to 40 minutes from my home. A darker but less used site is about an hour and 45 minutes away.
Due to home storage and transportation requirements, I don’t have any intent at this point to go bigger than my current 8 inch dob. I’m pretty set with all of my current telescopes. Here’s how I use my current equipment. My usage choices below are just my opinion but are pretty set based on my experiences, preferences and observing routine.
When viewing planets or the moon, I use the Mewlon 180 with binoviewers if time allows or the 102mm refractor with or without binoviewers for shorter sessions. It’s unlikely I would ever choose the BTs specifically for a planet viewing session.
For double stars, I prefer either of the refractors or the Mewlon. I enjoy single eyed viewing best for this class of object and it’s unlikely I would choose BTs for double stars.
For galaxies, I prefer my dob but occasionally use the refractors for brighter galaxies. I’ve just recently really got into this class of object since I started using the darker observing site.
For getting the most from globular clusters, I prefer the dob for the increased resolution. Based on comparisons with the 102mm refractor, it’s unlikely I would choose BTs for this class of object.
For planetary nebula, I prefer the dob due to the small size of many of these objects. It’s unlikely I would choose BTs for this class of object.
That leaves open clusters and large nebula. Depending on the object, the dob and refractors do a good job but maybe the BTs would add something here due to the wide FOV and two eyed observing but would the extra wide field of 10X50 binoculars I already have be even better?
So considering my current equipment and usage does a BT add anything to my current capabilities and if so, which size would be the most complementary? ( I wouldn’t want to go larger than 100mm.) What might I be missing that I’m not considering due to the fact that I haven’t used larger binocular telescopes before? Is just the different “experience” (with perhaps a decrease in absolute performance vs my current equipment on some object types) enough to add BTs to my equipment?
Thanks for reading and any thoughts you have.
Edited by Steve D., 19 June 2019 - 07:22 AM.