Smartphone Telescope Finder

Smartphone Telescope Finder

Discover a straightforward and cost-effective method to make locating celestial objects with a "non-go-to" telescope easier, especially for those new to astronomy. This technique can overcome a common challenge faced by novice amateur astronomers.

Background: I've been an amateur astronomer since my teenage years - and I still am. I became a professsional and hold a PhD in astrophysics. I'm a member of the International Astronomical Union (IAU) and have extensive experience observing with large telescopes and managing astrophysical projects. Post-retirement, my focus has shifted to outreach for young amateurs, including producing and directing a local astronomy TV program for over two decades.

The Challenge: The primary hurdle for emerging amateur astronomers is finding celestial objects.

While smart “go-to” telescopes offer a solution, they can be prohibitively expensive. Here's an inexpensive alternative to get started.

The Solution: Your smartphone, likely within arm's reach, can guide you to your astronomical targets when attached to your telescope. I've successfully tested this method using a small telescope destined for disposal.

How It Works:

1.  Install an astronomy app with a sky chart feature on your phone. I recommend the free app "StarChart."

https://play.google.com/store/apps/details?id=com.escapistgames.starchart&hl=en_US

2.  Securely fasten a mobile smartphone clip to your telescope using a smartphone holder and a band clamp.

3.  Place your smartphone in the clip, aligning it with the telescope's direction.

4.  During the day, align the phone and telescope using visible landmarks.

5.  Before observing, ensure your app's home location is set and configured to follow the sky.

6.  Point the telescope in the general direction of the desired object and consult the sky chart on your phone.

7.  Center the object on the app's screen, and it should appear in the telescope's finder scope.

Additional Tips:

●     Use the app's sky chart, not the camera, to locate objects so you get all the information the app contains.

●     You can set up during the day, regardless of weather conditions.

●     When observing the Sun, cover the smartphone camera lens with black tape to prevent damage to the camera.

●     Always use proper filtration on the telescope to prevent eye damage and NEVER LOOK DIRECTLY AT THE SUN! 

●     For larger Schmidt-Cassegrain telescopes, attach the smartphone to the back of the telescope using velcro.

●     Also consider using an HDMI Cable Adapter Connector with a monitor for added convenience.

This is a simple and inexpensive way for a beginner to quickly appreciate the wonders of astronomy.