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How to observe deep-sky objects: Part 1

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How to observe deep-sky objects: Part 1

763 views June 2, 2020 1:35:14

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ChannelBAS - Bangalore Astronomical Society

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Description from the creator

Learn how to observe deepsky objects like star clusters, nebulae and galaxies in this series of talks by Dr. Akarsh Simha. The first segment in this series covers the intro to deepsky objects, different catalogs of deep sky objects, The human eye, averted vision, dark adaptation and how to preserve the dark adaptation of the eye.

Akarsh makes the talk extremely interesting with light humor, methodical approach and lots of anecdotes.

Timestamps:

00:00 Introduction and some background about the speaker
04:35 Draft outline for the 4-part series
06:28 Setting expectations for the series, and the nature of the series
12:20 Pre-requisite background for this talk series

13:35 What are deep-sky objects?
14:27 What is visual observing?
14:50 What is the point of visual observing?
16:57 Speaker’s personal take on why he does deep-sky observing (as opposed to astrophotography)
21:25 Advice for beginners based on speaker’s experience

27:30 Tour of deep-sky objects (DSOs): types of DSOs
35:20 Where are these DSOs?
37:59 Further types and features of deep-sky objects (pre-planetary nebulae, tidal tails, HII regions, AGN jets…)
49:31 Question and discussion break
1:00:07 Catalogs of deep-sky objects


1:06:32 The Human Eye: Introduction and Motivation
1:07:15 Photosensitive cells of the eye — rods and cones
1:09:00 Distribution of rods and cones in the retina
1:09:30 Dark adaptation: regeneration of rhodopsin
1:12:10 Spectral response of night vision
1:13:00 How to exploit the night vision of the eye to observe better: Averted Vision, Red Filtering to Preserve Dark Adaptation
1:18:26 Preserving eyesight
1:19:08 A brief discussion of colour vision in deep-sky observing

1:21:43 Questions and General Discussion

About this tutorial

BAS - Bangalore Astronomical Society published this 1:35:14 video tutorial on June 2, 2020. It has been watched 763 times on YouTube.

Duration
1:35:14
Published
June 2, 2020
Views
763
Likes
20

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