Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .
-
Upload
rodolfo-garretson -
Category
Documents
-
view
217 -
download
0
Transcript of Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .
![Page 1: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/1.jpg)
Science with Your Telescope
Brian D. Warner
Palmer Divide Observatoryhttp://www.MinorPlanetObserver.com
Space Science Institutehttp://www.SpaceScience.org
![Page 2: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/2.jpg)
Science is Fun!
• You can use what you already have
• Expands your knowledge
• Professionals depend more, not less, on amateur observations
• Satisfaction of collaborations and publication
![Page 3: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/3.jpg)
Asteroid Lightcurves at The Palmer Divide Observatory
• Correlation between size and period.
• Slow rotators - what about them is common?
• Size, shape, pole orientation
• Size, shape, pole orientation
• Additional observations in support of radar observations
• Remove observational bias towards brighter, main belt asteroids, i.e., increase
statistical sampling
• Correlation between size and period.
• Slow rotators - what about them is common?
• Size, shape, pole orientation
• Size, shape, pole orientation
• Additional observations in support of radar observations
• Remove observational bias towards brighter, main belt asteroids, i.e., increase
statistical sampling
Why Do Asteroid Lightcurves?
![Page 4: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/4.jpg)
The Palmer Divide Observatory
20”
14”
![Page 5: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/5.jpg)
The Palmer Divide Observatory
0.5m f/8.1 Ritchey-Chretien
FLI-1001E (1Kx1Kx24m)
FLI filter wheel - BVRC
80mm/ST-237 guiding
0.35m LX-200GPS
North:FLI-1001E - unfiltered
South:ST-9E, f/5.0 reducer, VRC
![Page 6: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/6.jpg)
The Palmer Divide Observatory
![Page 7: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/7.jpg)
A Typical Night
• Select targets
• Open observatories
• Write scripts
• Start runs
• Download images during/after runs
• Measure images and analyze data
![Page 8: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/8.jpg)
A Typical Night
• Works 2 asteroids
• Periodically syncs
• Periodically focuses
• Shuts down camera
• Homes scope
![Page 9: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/9.jpg)
A Typical Night
• Measure images with MPO Canopus
• Plot raw data and look for obvious outliers
• Do Period Search with MPO Canopus Fourier analysis
![Page 10: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/10.jpg)
Follow up
• Merge multiple nights
• Do Period Search on combined data set
![Page 11: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/11.jpg)
It’s Not Always Pretty!
![Page 12: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/12.jpg)
Binary Asteroids
Initial Discovery at PDO (Oct. 2004 - present)
3309 Brorefeld5477 1989 UH25905 Johnson9069 Hovland
34706 2001 OP83 76818 2000 RG79
![Page 13: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/13.jpg)
Results - Hungarias
From Harris Lightcurve List (August 2006)
• Total Number: 70
• PDO (primary): 49 (70%)
• Spin Rate Distribution:
– Two peaks
– Less “Spin barrier” effect versus NEO population
![Page 14: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/14.jpg)
Results - Hungarias
![Page 15: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/15.jpg)
• Published quarterly by Minor Planets Section of ALPO.
• Best place for amateurs to submit.
• Juried publication, in many professional libraries around the world (good PR for school programs)
• Inexpensive: FREE!
http://www.MinorPlanetObserver/mpb/default.htm
The Minor Planet Bulletin
Publishing Your Work
![Page 16: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/16.jpg)
Data Mining Asteroid Images
Variable Star Search
![Page 17: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/17.jpg)
Data Mining Asteroid Images
Variable Star Search
![Page 18: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/18.jpg)
Data Mining Asteroid Images
Variable Star Search
![Page 19: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/19.jpg)
Data Mining Asteroid Images
![Page 20: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/20.jpg)
Data Mining Asteroid Images
![Page 21: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/21.jpg)
Binary Stars
![Page 22: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/22.jpg)
Modeling Binary Stars
Binary Maker 3http://www.binarymaker.com
![Page 23: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/23.jpg)
Modeling Binary Stars
Binary Maker 3
Mass ratio input = 1.500000 mass ratio < 1 = 0.666667Omega 1 = 4.439516 Omega 2 = 4.439516Omega inner = 4.526136 Omega outer = 3.948668Fillout 1 = 0.150000 Fillout 2 = 0.150000
Surface area 1 = 2.298928 Surface area 2 = 1.612613Volume 1 = 0.321256 Volume 2 = 0.186599Mean radius 1 = 0.426171 Mean radius 2 = 0.355198Temperature 1 = 5400.00 Temperature 2 = 6000.00Luminosity 1 = 0.4662 Luminosity 2 = 0.5338Inclination = 72.000
![Page 24: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/24.jpg)
Variable Stars (Visual/CCD)
American Association of Variable Star Observers (AAVSO)
http://www.aavso.org
![Page 25: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/25.jpg)
Double Stars
• Easy to do with CD/DSLR/Webcam equipment
• Many targets in one night
• Help is needed on neglected stars
![Page 26: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/26.jpg)
Double Stars
Washington Double Star Catalog (WDS)
http://ad.usno.navy.mil/wds/wds.html
Yahoo News Group
http://groups.yahoo.com/group/binary-stars-uncensored/
![Page 27: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/27.jpg)
Double Stars
a / a RA / Dec of the primaryb / b RA / Dec of the secondary
![Page 28: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/28.jpg)
Double Stars
![Page 29: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/29.jpg)
Double Stars
Publishing Your Results
Journal of Double Star Observationshttp://www.jdso.org/
The Webb Society Double Star Circularshttp://www.webbsociety.freeserve.co.uk/notes/doublest01.html
![Page 30: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/30.jpg)
Science is FUN!
Society for Astronomical Sciences
http://www.SocAstroSci.org
![Page 31: Science with Your Telescope Brian D. Warner Palmer Divide Observatory Space Science Institute .](https://reader036.fdocuments.us/reader036/viewer/2022062322/56649cb45503460f94977bef/html5/thumbnails/31.jpg)
Acknoweldgements
Funding for this research was provided by:
NASA grant NNG06GI32G
NASA grant NNX06AB30G
NSF grant AST-0607505