official marking scheme - star party sri lanka party 2018 marking without...star party 2018 all...
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CONFIDENTIAL – Only for Use of Marking Examiners
Official Marking Scheme
Academic Committee of Star Party 2018 All Rights Reserved
Eranga Jayashantha Graduated in Astronomy & Modern Astrophysics at ISYA ( IAU) Hon.mend Dip in Astronomy & Astrophysics (IOAA – China ) B.Sc.(Hons) , Microbiology (Sp), University of Kelaniya,Sri Lanka
Simulators , Catalogues and Ephemerides Used;
Starry Night Pro Plus 6.4.3
The Sky 6 Pro
Redshift 7 Premium Version
Stellarium 17.0
WinJUPOS 10.3.8
Simbad Astronomical catalogue
2qs01
5 2018
All original content submitted along with this work registration is created by the work owner or
published under permission including but not limited to text, design, code, images, photographs and
videos are considered to be the Intellectual Property of the work owner and are protected by
copyrighted.com using the Digital Millennium Copyright Act Title 17 Chapter 512 (c)(3). Reproduction
or re-publication of this content is prohibited without permission.
Star Party 2018 All Island Inter School Observation Competition
Official Marking Scheme
1. Distribution of Marks for Each Round
Round No Description about the Round Marks
01 Moon Mapping 100
02 Observational Astronomy - Theoretical Paper Round 100
03 Spot Test on Observational Astronomy 100
04 Deep Sky Observation 150
05 Celestial Measurements 100
06 Constellation Mapping 150
07 Viva Test on Observational Astronomy 100
08 Jupiter Observation 100
09 Mars Observation 100
10 Saturn Observation 100
OVERALL MARKS 1100
2. Location details
Date : 23rd – 24th of February 2018
Observer’s Location : Peradeniya , Sri Lanka
Longitude : 80.6° E ( 79 E– 82E Approved )
Latitude : 7.3° N ( 6N – 10E Approved)
GPS Coordinates : 7° 15’ 23.734”N , 80° 35’ 47.793”E
Elevation : 480m (No need to consider at marking)
LCT to UT Conversion : UT = ( LCT – 05h 30 min ) / Time Zone : +5.5 h
Seeing : Observer should keep in Antoniadi Scale
I Perfect seeing, without a quiver
II Slight quivering of the image with moments of calm lasting several seconds
III Moderate seeing with larger air tremors that blur the image
IV Poor seeing, Constant troublesome undulations of the image
V Very bad seeing, hardly stable enough to allow a rough sketch to be made
3. Basic planetary observerbility data on the day
Moon Data :-
Constellation : Taurus
RA : 4h 27 min
Dec : 170 00’
App. magnitude : (-11.3)
Moon Phase : First Quarter
Calculated Phase : 53 %
Moon Age : 8 days
Jupiter Data :-
Constellation : Libra
RA : 15 h 23 min
Dec : (-170 23’)
App. magnitude : (-2.1)
Rises : 2323 h (23rd)LCT
Culminates : 0515 h (24th )LCT
Sets : 1108 hLCT
Saturn Data :-
Constellation : Sagittarius
RA : 18h 30 min
Dec : (-220 )
App. magnitude : 0.6
Ring Tilt Value : 260
Rises : 0232 h (24th )
Culminates : 0821 h
Mars Data
Constellation : Ophiucas
RA : 17 h 05 min
Dec : (-220)
App. magnitude : 0.9
Phase : 89%
Rises : 0107 h (24th)
Culminates : 0657 h
Sets : 1242 h
Sets : 1411 h
Hour Angle = Cos-1 Cos (90 - Alt) – Cos (90 – Dec) x Cos (90 – Lat ) Sin ( 90 – Dec) x Sin (90 – Lat )
NOTICE !
All the Observation Reports in Star Party 2018 competition were prepared under the International stands for submission of observation reports which was published by the British Astronomical Association (BAA) & American Association of Variable Stars Observers (AAVSO)
Rises : 1158 h (23rd) LCT
Culminates : 1819 h LCT
Sets : 0042 h (24th) LCT
4. Marking Scheme For the Viva Test
No
Main Topic
Marking official should Consider about following facts
Marks
01
Physical Data of their group Telescope
Aperture / focal length / eyepieces/ Current magnification / Telescope Type / Mounting System
20
02 Description on how to prepare the telescope before observing targets
Keeping tripod in correct position/ leveling the axis/ leveling the finder scope/ Ajusting polar axis , Equatarial axis, declination axis using reference stars method
20
03 Mounting skills of the contestants
The Marking official may select a celestial object using a laser pointer and the contestant should direct the telescope to the object.
The contestant should use the finder scope to mount the object in the visual field.
The object must be located in the center of the crosshair in visual field.
The contestant must mount the object within 2 minutes (Maximum)
The contestant may use most appropriate ocular ( Eyepiece) to observe the object { wide angle/ Barlow )
20
04 Identifying Celestial objects When marking official points on the selected objects , contestant should identify them correctly.
10 X 2 =20
05 Knowledge on modern observational equipment and methods
CCD imaging/spectrum analyzing / finding exoplanets/ Interferometers/ Neutrino detectors/ Adaptive Optics/ Active Optics
20
06 Bonus & Additional Marks
Marking official may inspect their group telescope/ tripod/ scale ajusments/ balancing and give bonus marks (Maximum 10)
10
Total marks for viva test = 100+ bonus 10
5. Marking Scheme for Constellation Mapping Session
Every Team should mention following details on every Constellation mapping report which they are submitting to the Academic committee for marking.
Detail Description about the detail Marking Officials Guidelines
Marks
Name:
Name of the student who made the report
Location:
(Kandy ) or (Peradeniya) , Sri Lanka
No marks without “Sri Lanka”
Date : 24th of February 2018 In any format
Time:
Start = ………………….UT Finished = ………………… UT
No marks for LCT time format
Constellation:
Name of the mapping constellation
In English or Sinhala
Altitude & Azimuth:
Altitude & Azimuth at center of the Constellation, when observer starts mapping
Seeing
Astronomical Seeing in “Antoniadi” or (another standard scale)
Observational Notes
Brief description about the observation
8 Marks For each Report
20 Marks for
Mapping Area
on Each Report
Constellation Mapping Area on the graph paper
Details about the observation Report
The Observer must
indicate the direction
of North
Mapping Scale 1cm = ……. degrees
Total Marks for each mapping
Report =
( 20 + 8 ) 28 Marks
5.1 Additional guidelines for marking officials ~ Constellation Mapping
Every Team should submit 5 Constellation mapping reports. If they have submitted more
than 5, mark the best drawn 5 only.
If the observer has drawn deep sky objects such as Nebulas, Galaxies, Messier objects in
the constellation mapping area; Give MINUS (-5) MARKS. ( Drawing such objects inside
the constellation mapping area is not acceptable ). But the observer can mark those DSO
using standard symbols ( If these objects are seen via naked-eye ) .
Eg : - Observer can mark Orion nebula (using a Symbol) in its position ( at the constellation
of “Orion”) in his/her constellation mapping drawing sheet. But drawing the Orion nebula
IS NOT ACCEPTABLE !
Observers should make a relative apparent magnitude scale and show it on at least one
observation report. IF it missed ( – 10) marks will be added to Total marks of this session.
[They should consider Vega (alpha Lyrae) = 0.0 ].
The apperent magnitudes of each star should be represented by the size of the “dot” which
represents the particular star in the report.
Sizes of dots which represent stars on the drawing sould be proportional to its apparent
magnitude. Marking officials should specially consider about this fact.
The student must indicate the brightest star of each constellation
Specially consider about relative distances within stars of the constellation. Relative
distances between each dot shoud represent the angular separation of respective stars of
the original constellation in the sky.
The marking examiner should pay special attention on “Drawing arcs” which was used by
the observer to map constellation. If there are no such arcs visible on the report, Give
MINUS Marks (-10) to such report.
5.2 Distribution of marks for Constellation mapping round :-
Marks for one report
Marks for 5 reports
Details about the observation Report 8 Marks 8 X 5 = 40 Marks
Maks for the Mapping Area (Observational techniques & Mapping skills)
12 Marks
20 X 5 = 100 Marks
Bonus marks for completion report + Additional Bonus Marks
10 Marks
Total Marks For Constellation Mapping session
150 Marks
Maximum Minus marks
( -5)+(-10)
((-5) X 5 ) – 10 +((-10)x5) = ( - 85 )
6. Marking Scheme for Deep Sky Observation Session
Every Team should mention following details on every Deep sky observation (DSO) report
which they are submitting to the Academic committee for marking.
Detail Description about the detail Guidelines Marks
Name:
Name of the student who made the report
Location:
(Kandy ) or (Peradeniya) , Sri Lanka
No marks without “Sri Lanka”
Date :
23rd or 24th of February 2018
In any format
Time:
Start = ………………….UT Finished = ………………… UT
No marks for LCT time format
Deep Sky Object :
Name of the Deep Sky Object (DSO)
In English or Sinhala
Constellation:
Constellation of the DSO
Type of the object :
Type of the DSO Ex: Galaxy (G)/ Emission Nebula (EN) / Planetary Nebula ( PN)/ Open Cluster ( OC)/ Globular Cluster ( GC) Etc…
Altitude & Azimuth:
Estimated Approximate Altitude & Azimuth of DSO when the observer starts observation
+or- 5 degrees approved
RA and Declination
Right Ascension and Declination by Star Chart
Telescope details
Telescope Type ( Reflector,Refractor or Catadioptric ) Aperture / Focal Length / Used Occular ( Eye Piece) for drawing DSO / Total Magnification / Eye piece type
The observer must specially mention the type of the eyepiece
Seeing
Astronomical Seeing in “Antoniadi “ or another standard scale.
Observational Notes
Brief description about the observation
12 Marks
6.1 Additional guidelines for Marking officials
Every Team should submit 5 Deep Sky Observation (DSO) reports. If they have submitted
more than 5, mark the best drawn 5 only.
6.2 Distribution of Marks :-
Marks for one report
Marks for 8 reports
Details about the report 12 Marks 12 X 5 = 60 Marks
Maks for the Mapping Area of DSO report (Observational techniques & Mapping skills)
15 Marks
15 X 5 = 75 Marks
Bonus marks for FOV indication and other techniques
3 Marks 3 x 5 = 15 Marks
Total Marks For Constellation Mapping session
150 Marks
Maximum Minus marks 00 00
SAMPLE REPORT
Mapping Area
15 Marks for
Mapping Area
on Each
Report
Bonus Marks for the completion of Constellation mapping & DSO observation reports are given by the Head of the Academic committee after compairing all the marked observation reports from all the groups. Observational techniques, mapping skills and submission performances are considered in this task
Jupiter Observation Session
Appendix – Additional Information for Marking Observation Reports
Moon Observation Session
Possible answers
Start (UT) 1345 h – 1445 h
23rd FEB (as scheduled)
Start (LCT) 1915 h – 2015 h
23rd FEB (as scheduled)
Finish (UT) 1345 h – 1445 h
23rd FEB (as scheduled)
Finish (LCT) 1915 h – 2015 h
23rd FEB (as scheduled)
Estimated app.mgtd (-11.3) {±1.0}
Estimated Phase 53 % {±3%}
Moon Age 8 days {±1} (Decimal pts. are NOT Accepted}
Altitude 740 - 610 {±30}
Azimuth 3080 - 2920 {±30}
Possible answers
Start (UT) 2100 h – 2145 h
23rd FEB (as scheduled)
Start (LCT) 0230 h – 0315 h
24th FEB (as scheduled)
Finish (UT) 2100 h – 2145 h
23rd FEB (as scheduled Finish (LCT) 0230 h – 0315 h
24th FEB (as scheduled) Estimated app.mgtd (-2.1) {±1.0}
RA 15 h 23 min {±1 min}
Dec (-170) {±30}
Altitude 420 - 510 {±30}
Azimuth 1210 - 1300 {±30}
Original View of The Moon on 2018 FEB 23 (1415 h UTC ). The Orientation of the image can be vary on the observing telescope.
N
P
F
P
0230 h (LCT)
Check Relative
Distances between
Jovian satellites Inverted Mirrored View of The Jupiter on 2018 FEB 24 (0245 h LCT ). The Orientation of the image
can be changed due to the type of observing telescope.
Original View of The Jupiter on 2018 FEB 24 (0230 h UTC ). The Orientation of the image can be changed due to the type of observing telescope.
Original View of The Jupiter on 2018 FEB 24 (0315 h UTC ). The Orientation of the image can be changed due to the type of observing telescope.
Saturn Observation Session
Possible answers
Start (UT) 2230 h – 2315 h (23rd Feb) (as scheduled)
Altitude 190 - 290 {± 30}
Start (LCT) 0400 h - 0445 h (24th Feb) (as scheduled)
Azimuth 1170 - 1210 {± 30}
Finish (UT) 2230 h – 2315 h (23rd Feb) (as scheduled)
Ring Tilt 260 {± 5.00}
Finish (LCT) 0400 h - 0445 h (24th Feb) (as scheduled)
Estimated
app.mgtd (0.6) {± 0.2}
RA 18h 30 min {± 10min}
Dec (-220 ) {± 30}
0420 h LCT
North Temperate Belt
S
P F
Li
N
Orientation and magnification can be vary on the telescope
2018 FEB 24 (0400 h LCT ).
2018 FEB 24 (0445 h LCT ).
Mars Observation Session
Possible answers
Start (UT) 2145 h - 2230 h (23rd Feb) (as scheduled)
Start (LCT) 0315 h - 0400 h (24th Feb) (as scheduled)
Finish (UT) 2145 h - 2230 h (23rd Feb) (as scheduled)
Finish (LCT) 0315 h - 0400 h (24th Feb) (as scheduled)
Estimated
app.mgtd 0.9 {± 0.2}
RA 17h 05min {± 10min}
Dec (- 22)0 {± 30}
Altitude 280 - 370 {± 30}
Azimuth 1200 - 1260 {± 30}
Star Party 2018 ~ Academic Committee ®. All Rights Reserved
Location of the Mars on the observer’s Sky
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All original content submitted along with this work registration is created by the work owner or
published under permission including but not limited to text, design, code, images, photographs and
videos are considered to be the Intellectual Property of the work owner and are protected by
copyrighted.com using the Digital Millennium Copyright Act Title 17 Chapter 512 (c)(3). Reproduction
or re-publication of this content is prohibited without permission.
Star Party 2018
Celestial Measurements & Observational Techniques
Official Marking Scheme
-------------------------------------------------------------------------------------------------------------
1. 100 (±50) To be confirmed
2. (a) Virgo
(b) Spica
3. 300 (±50)
4. (a) Arcturus
(b) lg (T) = [14.551-(B-V)]/3.684
= [14.551-(1.18 - (-0.05)]/3.684
= 103.62
= 4130 K
Give marks for the range of (4100 K – 4200 K)
(c) Vt = 4.74μD
= 4.74 * 2* 11.3
= 107.12 kms-1
(d) VR = CZ
VR = 1.7 x 105 x 3 x 105 kms-1
= 5.1 kms-1 or { -5.1 kms-1 }
(e) 𝑉𝑜 = √𝑉𝑡2 + 𝑉𝑅
2
𝑉0 = 107.24 𝑘𝑚𝑠−1
5.
සාමාන්ය න්ාමය Altitude Azimuth Hour Angle
(a) Alphard 730 -720 1950 - 2030 0 h 18 min - 0 h 28 min
(b) Acrux 130 - 140 1620 – 1630 21 h 19 min – 21 h 29 min
6.
Altitude Azimuth RA DEC
Autumnal Equinox 580 - 590 1010 - 1020 12 h 00 min 00
7.
Perimeter of the winter triangle = 27+27+26 = 80 0 (±30)
8. OC
9. 0h 02 min {± 02 min}
10. 1840 h
11. 2458174.281251
12. a) Gemini
b) Castor
c) Pollux
d) Pollux is an variable star. At the time when Bayer developed his catalogue.
Pollux was observed as the second brightest star in the constellation Gemini. But
now, it has higher brightness than Castor (which is named as α Gemini in Bayer’s
catalogue).
13. RA = 22 h 32 min ; DEC = (-70)
Procyon
Betelgeuse
270 (±20)
270 (±20)
Sirius
260 (±20)
14.
15.
16. Yes
17. Jupiter
4o
5o
3o
3o
4o
4o
α
β
γ
N
18. (a)
(b) Refer telescope technical details and perform a simulation.
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Prepared by:
Eranga Jayashantha
Simulations using:
- Starry Night Professional Plus 6.4.3 (Database updated SN7)
- TheSky Pro 6.0
- Stellarium 17.0.0
- Redshift 7 Premium edition
- WINJUPOS 10.3.8
- Simbad Astronomical Database (CDS)