IOAA 2023, Наблюдения, телескоп — Задача 4. Наднова

Observation Round — Ukrainian (Ukraine) · 10 т.

Внимание: Бележка към темата

The question booklet is Ukrainian (Ukraine), with English instructions. The companion archive booklet contains the English originals and complete English solutions and marking schemes; both question editions are retained within the same four tasks. The observing video for tasks 1–2 and the Saturn screen image for task 3 are absent from these PDFs. The companion includes the two galaxy images for task 4. The occultation key changes Δt to Δx in its mid-time error thresholds, excludes the exact mid-time 23:03:39.7 from its printed intervals and says duration should be to 1 s.f. although the answer is 17 s. The satellite key prints 62°,2 and an extra closing parenthesis. The moon key image uses Polish name variants and four magnitudes differing by 0.1 from the question table. All these source details remain as printed. In the Ukrainian star table, a dropdown icon covers the last magnitude digit for Gaia DR2 1070459408131195776. The companion table shows 10.2003. Conversely the companion obscures the last digit for Gaia DR2 1070144329329069568, which the Ukrainian table shows as 10.0785. Both original table images and these source-supported accessible values are preserved.

General Instructions

Scientists have discovered a crashed alien flying saucer. High up inside the hold, they found several screens transmitting views of the sky and telescopes have been set up to let you see them clearly from the level of the deck. Use your telescope to observe the (simulated) targets on the screens and record your results.

There are 5 screens on the opposite side: the central one will display video for tasks 1 and 2, the other four will display static images for tasks 3 and 4. The two screens closer to the centre will display the (same) image for task 3, and the two outer screens will display the (same) image for task 4. Point your telescope at the screens furthest away from you.

431, 234

You will have a total of 30 minutes to complete the observing tasks, however tasks 1 and 2 will only be displayed once: just as with real observations you will only have one opportunity to collect the data. There will be two clocks visible showing the time remaining in the round.

At the start of the round a clock on the central screen will show the simulated time at the observer’s location. The clock will have the correct orientation when seen through the telescope. The time will be shown for 3 minutes after which it will disappear; use this to set a start time for your observations.

Caution: the scale of the field of view is different between the video and still images.

Procedure

You have 30 minutes to read the questions and plan your observations. Do not talk to other participants. When you are shown the sign to ‘GO NOW’ by the supervisor, follow the directions to the telescope location taking with you the questions, clipboard and pen/pencil (a red light will be provided at the telescope). Keep your distance from other participants and do not talk to them. Show your badge and code to the assistant at your telescope.

You will have a total of 30 minutes to complete the observing tasks, starting when all participants are ready. At the end of 30 minutes take your papers and clipboard (leave the light) and wait until called to leave the observing location.

Follow the directions back to the preparation hall. Keep your distance from other participants and do not talk to them.

You will have another 30 minutes to process your observations and complete the answer sheet (there will be a calculator, geometrical instruments etc.). If you had any technical problems you can write a report for your team leader on the form in the answer sheets. At the end of 30 minutes place your answer sheets and the report in the envelope and wait at your desk until directed to leave the hall.

Условие

На іншому екрані представлено зображення галактики та яскравої (mag <11< 11) нової зорі, яку раніше не було видно. Визначте пряме піднесення (RA) та схилення (DEC) цієї зорі та оцініть її зоряну величину. Ви можете використовувати мапу Map no. 2, з координатами зір та списком зоряних величин.

A.4 (10 pt)

Пряме піднесенняСхиленняОціночна зоряна величина
StarRA J2000DEC J2000mag
hmsdegms
BD+69 5419552.768562210.3715
Gaia DR2 107009701596936256095327.968584311.2281
Gaia DR2 107014432932906956895317.76924810.0785
Gaia DR2 10704534638964619529570.8685468.9148
Gaia DR2 107045501008479168095525.968512111.4722
Gaia DR2 10704594081311957769581.668572410.2003
Gaia DR2 10704670703529605129554.4685459.1615
Gaia DR2 1070467379590606976955168562210.4605
Gaia DR2 107046816986459020895445.368565912.2097
Gaia DR2 107046947553455372895541.46903011.7856
Gaia DR2 1070470265808536448955456914611.2905
Gaia DR2 107047060940451251295533.26935513.3020
Gaia DR2 107047229303316864095453.26934814.2845
Gaia DR2 107047318638637017695442.36955211.6033
Gaia DR2 107047679415881715295738.869104412.6348
Gaia DR2 107047685858136038495647.16972712.7259
Gaia DR2 107047689723803827295634.46975113.6578
Gaia DR2 107047724083542144095644.8699113.7626
Gaia DR2 107047730525795788895645.16910111.4495
Gaia DR2 107052293499050931295515.469151912.0436
Gaia DR2 107052311108622156895428.669132211.0704
HD854589554685469.1615
Complete original 22-row RA J2000, DEC J2000 and magnitude table, including the native dropdown artifact over the last digit in row 6.
Complete original Ukrainian portrait Map no.2 with coordinate grid, every outer star, full galaxy inset and all right-ascension and declination labels.
Мапа Map no.2

English — Observation 4: ‘Supernova’

The other screen presents the view of a galaxy and a bright (mag < 11) object which was not visible previously. Estimate the right ascension (RA) and declination (DEC) coordinates of this star and estimate its magnitude. You may use Map 2, with stellar coordinates and a list of magnitudes.

(10 points)

Complete original English 22-row star table; row 6 magnitude 10.2003 is visible, while a dropdown artifact obscures the last digit of row 3.
StarRA J2000DEC J2000mag
hmsdegms
BD+69 5419552.768562210.3715
Gaia DR2 107009701596936256095327.968584311.2281
Gaia DR2 107014432932906956895317.76924810.0785
Gaia DR2 10704534638964619529570.8685468.9148
Gaia DR2 107045501008479168095525.968512111.4722
Gaia DR2 10704594081311957769581.668572410.2003
Gaia DR2 10704670703529605129554.4685459.1615
Gaia DR2 1070467379590606976955168562210.4605
Gaia DR2 107046816986459020895445.368565912.2097
Gaia DR2 107046947553455372895541.46903011.7856
Gaia DR2 1070470265808536448955456914611.2905
Gaia DR2 107047060940451251295533.26935513.3020
Gaia DR2 107047229303316864095453.26934814.2845
Gaia DR2 107047318638637017695442.36955211.6033
Gaia DR2 107047679415881715295738.869104412.6348
Gaia DR2 107047685858136038495647.16972712.7259
Gaia DR2 107047689723803827295634.46975113.6578
Gaia DR2 107047724083542144095644.8699113.7626
Gaia DR2 107047730525795788895645.16910111.4495
Gaia DR2 107052293499050931295515.469151912.0436
Gaia DR2 107052311108622156895428.669132211.0704
HD854589554685469.1615
Both native colour galaxy images, including the bright object visible in the second image and all comparison stars.
Full original English landscape Map 2, galaxy, all outer stars, RA 10h00m–9h50m and DEC +69°20′ through +68°50′ labels.

Answer Sheet

Right ascensionDeclinationest. magnitude

Отговори

Решение


Оригинал в Архива: telescope_ukr.pdf · решение от архива: telescope_sol.pdf