Astronomy 105 Laboratory Lab 01

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

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

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!

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

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.

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

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

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

Constellations – Sky Familiarization Lab 01 Constellations – Sky Familiarization

The Celestial Sphere

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

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

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

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

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

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

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

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

April 21 @ 8:00 p.m. Due East Point Horizon

Approximate part of the sky not visible at 8:00 p.m. April 21 @ 8:00 p.m. zenith West Approximate part of the sky not visible at 8:00 p.m. East East West Meridian

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

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

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

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

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

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.

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

End

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

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

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.

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

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

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

Clicker Registration

Lab Quiz 01

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

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

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.

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.

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 3 Precision and Significant Digits Part 1, Part 2, Part 3