Book contents
- Front Matter
- Contents
- Foreword
- Opening thoughts
- Acknowledgments
- Part 1 Getting to know the sky
- Part 2 Getting to know the variables
- 5 Meeting the family
- 6 Getting started with Cepheids
- 7 Algol, the demon of autumn
- 8 How to estimate a variable
- 9 Names and records
- 10 Observing hints
- 11 Stately and wonderful
- 12 Stars of challenge
- 13 Bright, easy, and interesting
- 14 Betelgeuse: easy and hard
- 15 Not too regular
- 16 Nova? What Nova?
- 17 Supernovae
- 18 Three stars for all seasons
- 19 A nova in reverse?
- 20 RU Lupi?
- 21 Orion, the star factory
- 22 Other variable things
- 23 The Sun
- Part 3 Suggested variables for observation throughout the year
- Part 4 A miscellany
- Index
12 - Stars of challenge
Published online by Cambridge University Press: 22 September 2009
- Front Matter
- Contents
- Foreword
- Opening thoughts
- Acknowledgments
- Part 1 Getting to know the sky
- Part 2 Getting to know the variables
- 5 Meeting the family
- 6 Getting started with Cepheids
- 7 Algol, the demon of autumn
- 8 How to estimate a variable
- 9 Names and records
- 10 Observing hints
- 11 Stately and wonderful
- 12 Stars of challenge
- 13 Bright, easy, and interesting
- 14 Betelgeuse: easy and hard
- 15 Not too regular
- 16 Nova? What Nova?
- 17 Supernovae
- 18 Three stars for all seasons
- 19 A nova in reverse?
- 20 RU Lupi?
- 21 Orion, the star factory
- 22 Other variable things
- 23 The Sun
- Part 3 Suggested variables for observation throughout the year
- Part 4 A miscellany
- Index
Summary
Two of the most famous Mira variables in the sky, R Leporis and Chi Cygni, are challenging, but for different reasons; R Leporis is unusually red, and Chi Cygni lies in a rich field of stars.
R Leporis
Until you've seen R Leporis at maximum, you haven't seen red. Here is a star whose redness offers us a new interpretation of color, a transcendent presence of vivid hue from a great distance.
In my early years of stargazing, I was guided by an old book by J. B. Sidgwick called Introducing Astronomy. During hundreds of observing sessions it taught me faithfully, pointing out the constellations one by one, as well as the inspiring contents of each. I especially remember the description of M42 — as exciting to read about as the nebula was to look at. Then I'd turn the page for Lepus, the Rabbit, just to see what glories were hidden from me in the little constellation that couldn't quite hop above the treetops of my southern horizon. It was Introducing Astronomy that taught me about R Leporis, Hind's Crimson Star, that shone in the sky like a drop of blood. As much as I longed to see this star, I expected I never would until either the trees fell down or I moved to a better site.
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- Observing Variable StarsA Guide for the Beginner, pp. 51 - 55Publisher: Cambridge University PressPrint publication year: 1989