Abstract

Measuring the change in the optical alignment of a camera attached to a telescope is necessary to perform astrometric measurements. Camera movement when the telescope is refocused changes the plate constants, invalidating the calibration. Monitoring the shift in the optical axis requires a stable internal reference source. This is easily implemented in a Petzval refractor by adding an illuminated pinhole and a small obscuration that creates a spot of Arago on the camera. Measurements of the optical axis shift for a commercial telescope are given as an example.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Astrometric distortion calibration of a portable refractor

Donald G. Bruns and Corey T. Bruns
Appl. Opt. 56(22) 6288-6292 (2017)

Using confidence intervals to evaluate the focus alignment of spectrograph detector arrays

Travis W. Sawyer, Kyle S. Hawkins, and Michael Damento
Appl. Opt. 56(18) 5295-5300 (2017)

Precise transverse alignment of spatial light modulator sections for complex optical field generation

Jian Chen, Chenhao Wan, Lingjiang Kong, and Qiwen Zhan
Appl. Opt. 56(10) 2614-2620 (2017)

More Recommended Articles

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription