1. Astronomy 105 Laboratory
Lab 01

2. Astronomy 105 -- Section ?? Astronomy Lab Coordinator
Mr. Michaels
Teaching Assistant ?

3. Astronomy 105 Lab Policies
Come prepared!
Reading assignment (see Calendar on syllabus)
Always bring the following to lab
pencil, calculator, lab manual
Use pencil only, neatness and accuracy important!!
Read carefully Classroom Policies in Syllabus

4. Astronomy 105 Lab Policies
Grading
Lab Average = (0.75 x Exercise Average) + (0.25 x Exam)
Lab Average is 25% of course grade
The same grade will be recorded for both lecture & lab.
Absences
A grade of zero is recorded for every unexcused absence No makeup labs--
Roll called at beginning of lab -- Don’t be late!

5. Astronomy 105 Lab Policies
Astronomy 105 Lab is not a team effort
Everyone works through the lab exercise individually
Copying or plagiarism from your neighbors
1st occurrence – 10 points reduction in score
2nd occurrence – zero for the lab exercise

6. Cell Phone Policy Cell phones must be turned off and out of sight
Students observed using a cell phone will lose 10 points off their daily lab grade – if a second warning is given the daily grade will be zero.

7. Ast 105 Web Resources Lab Home Page Lab Syllabus
Night Lab Calendar and Signup
Access Lab Grades by CID
PowerPoint Slides for Review
Lecture Links

8. Astronomy 105 Night Lab Night-lab Signup
Meet at the bus stop a few minutes early (See signup web page for bus departure time)
If cloudy you will need to signup again
Bring your star chart, Lab Manual, pencil

9. Next week’s Lab – Bring a calculator!!!

10. Constellations – Sky Familiarization
Lab 01
Constellations – Sky Familiarization

11. The Celestial Sphere

12. As seen from Nacogdoches
The Celestial Sphere
Zenith
32o
As seen from Nacogdoches
Equal to your latitude CE
NCP
32o
Meridian
West
South
North
Horizon
East
SCP

15. Sky Familiarization Stars and Constellations Visible Depends on:
Time of Day – Earth’s Rotation
Calendar Date – Earth’s revolution about the sun
Observer’s Latitude

16. Sky Familiarization
Objectives: Using the SC-1 star chart, for a given date and time
Locate the meridian, zenith, and the due east and west points on the horizon
Identify stars and constellations visible

17. Vernal (spring) Equinox Autumnal (fall) Equinox
North
Summer Solstice
Ecliptic Sun’s Path
Vernal (spring) Equinox
East
Autumnal (fall) Equinox
Celestial Equator
South

18. Vernal (spring) Equinox Autumnor (fall) Equinox
North
Vernal (spring) Equinox
East
West
Autumnor (fall) Equinox
Winter Solstice
South

19. Right Ascension (hours) Declination (degrees)
North
Constellation
Deep Sky Objects
Fainter Stars
Bright Stars
Summer Solstice
Ecliptic Sun’s Path
Star Names
Vernal Equinox
Greek Letters
East
Autumnal Equinox
Right Ascension (hours)
Celestial Equator
Declination (degrees)
South
Celestial Prime Meridian

20. Find the RA and Dec of the star Sirius Celestial Prime Meridian
North
Find the RA and Dec of the star Sirius
East
RA = 6h 45m
DEC = -17°
South
Celestial Prime Meridian

21. April 21 @ 8:00 p.m. Zenith 32° (your latitude) Meridian North East
Due West on Horizon
East
South
Meridian

22. April 8:00 p.m.
Due East Point Horizon

23. Approximate part of the sky not visible at 8:00 p.m.
April 8:00 p.m.
zenith
West
Approximate part of the sky not visible at 8:00 p.m.
East
East
West
Meridian

24. April 21 @ 8:00 p.m. Zenith Meridian North East South
Due West on Horizon
East
South
Meridian

25. April 21 @ 9:00 p.m. Zenith Meridian North East South
Due West on Horizon
East
South
Meridian

26. April 21 @ 10:00 p.m. Zenith Meridian North East South
Due West on Horizon
East
South
Meridian

27. January 10 @ 8:00 p.m. North East
Stars cross the meridian 4 min. earlier each day due to the Earth’s revolution.
January 8 pm
5 days X 4 min/day = 20 min
January 8 pm

28. Sky Familiarization A Few Things to Remember
Any vertical line on your SC-1 (north-south) is a meridian.
Approximately one half of the stars on the SC-1 are visible at any given time (12 hours of RA).
The Earth’s Rotation
Stars, the sun, moon, and planets rise and set each day
The Earth’s Revolution about the Sun
Seasonal Stars and Constellations

29. Lab Exercise Classroom Activity Sky Familiarization Part 1 on page 5
Date: March 22 at 8 pm
Use a ruler! Lines should be neat and accurately placed. Print your name on the star chart.

30. Lab Exercise Planetarium Activity
Sky demonstration and review sky set for today's date
Sky Familiarization Part 2 on page 6 Date: November 5 at 8 pm

31. End

32. Astronomy 105 Lab Policies
Come prepared!
Reading assignment (see Indoor Calendar on syllabus)
Quiz at beginning of lab (clicker required)
Always bring the following to lab
Clicker, pencil, calculator, lab manual
Use pencil only, neatness and accuracy important!!
Read carefully Classroom Policies in Syllabus

33. Astronomy 105 Lab Exam Monday, April 25 at 6:30 pm
Location: Kennedy Auditorium
Mark your calendars!!!!!

34. Lab Exercise
Homework
Work on the “Equatorial Coordinate System Exercise” on pages 11 and 12. We’ll complete the exercise in lab next week for questions requiring the “SC1 Star Chart.

35. As seen from Nacogdoches
The Celestial Sphere
As seen from Nacogdoches CE
NCP
West
South
North
Horizon
East
Sketch the celestial sphere.
Include the CE, NSP, SCP, zenith, meridian, nadir, horizon, due east and west points .
SCP

36. The Earth’s Rotation: Daily Motion
Noon
The Earth rotates towards the east (CCW)
Sunrise
The Earth’s Rotation
stars move 15°/hour from east to west
Sunset
Midnight

37. The Earth’s Revolution: Annual Motion
Spring Stars
Summer Stars
Winter Stars
The Earth’s Revolution
seasonal stars and constellations
Fall Stars

38. Clicker Registration

39. Lab Quiz 01

40. Attendance Check… Are you here?
I’m Here
Nope…Lost in Space 5

41. Lab Exam Date and Time October 21 at 6:30 pm November 21 at 5:00 pm
December 22 at 1:00 pm 5

42. Night Lab: Sign up. Bring a calculator next week
Night Lab: Sign up! Bring a calculator next week! Note: Review material for next week’s quiz located in the Study Area under Math Review on the MasteringAstronomy web site.

43. Channel Setting Instructions for ResponseCard XR
Press and release the “MENU” button.
Scroll down to “Change Channel” using the “Yes” / ”No” buttons and press “Enter”.
Enter channel number “60” and press “Enter”.
This Message Appears if successful…
Channel Changed. √
Receiver Found.

44. MasteringAstronomy – Assignment -- Bring a calculator next week --
Complete before next week’s lab
Log into MA and Click on the “Study Area” tab
On the left side of the page click on “Math Review”
View the following clips. Scientific Notation Part1, Part 2, Part 3
Working with Units Part 1, Part 2, Part Precision and Significant Digits Part 1, Part 2, Part 3