Contains:  Solar system body or event
691 Lehigh - Asteroid orbiting the SUN, 


            Ivan Raichev

691 Lehigh - Asteroid orbiting the SUN

Technical card

Imaging telescopes or lenses: Celestron 8” Rowe-Ackermann Schmidt Astrograph (RASA 8)

Imaging cameras: ZWO ASI 2600 MC Pro

Mounts: Ioptron CEM70

Guiding telescopes or lenses: Orion Deluxe Mini 50mm Guide Scope with Helical Focuser

Guiding cameras: ZWO ASI 224MC

Software: PixInsight 1.8  ·  SharpCap

Filters: Celestron LPI Filter for the 8” RASA

Accessory: Celestron Focus Motor

Date: May 6, 2021

Time: 21:47

Frames: 49

FPS: 0.00833

Focal length: 400

Resolution: 877x581

Locations: Астро терасата под звездите / My astro terrace under the stars, гр. София, кв. Княжево, Bulgaria

Data source: Backyard


On 06.05.2021 I imaged a wide field of galaxies in the constellation Coma Berenices. When I platesolved the image I found an interesting guest - an Asteroid! My first Asteroid!

Here is what I was able to find about the object on the web:

- name: 691 Lehigh;

- discovered in: 1909

- discovered by: Rev. Joel Metcalf, an amateur astronomer in Taunton, Mass.

- named on: Lehigh University in the USA by John H. Ogburn and Joseph B. Reynolds who got the right to name the Asteroid in exchange of the estimation of its properties.

- visual magnitude: +14.8;

- size: 88 kilometers;

- orbit around the SUN: 5.2 years;

- average distance from the SUN - 3.0 AU - between Mars and Jupiter;

The image is a GIF from my frames - 49*120 secs or 1 hour and 38 minutes.



691 Lehigh - Asteroid orbiting the SUN, 


            Ivan Raichev