डैशबोर्ड · परीक्षाएँ · NSEA
National Standard Examination in Astronomy
HBCSE/IAPT Stage-1 astronomy olympiad. 80 MCQs in 3 hours combining Class 11+12 physics & math with celestial mechanics, spherical trigonometry, and observational astronomy.
Updated 17 Aug 2026 ·Vacancy counts change every cycle — always confirm the exact number in the latest official notification before applying.
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Source: official exam authority notification · refreshed weekly. How this works →
Free NSEA preparation on Shishya
Take expert-curated mocks, practise previous year papers, and Ask Shishya when you're stuck — verified by students who cleared the same path. All free, no credit card. Sign in with Google to begin.
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Work, Energy and PowerA comet of mass m approaches the Sun from infinity with speed v. At its closest approach, its speed is 3v. The distance of closest approach in terms of G, M (Sun's mass), and v is:
Tap an option to check your answer.
डायग्नोस्टिक से शुरू करें
सिलेबस के 10 सवाल — देखें आप कहाँ खड़े हैं।
Verified against the official notification. Source ↗ · last reconciled 2026-05.
Topic-by-topic weightage averaged across 2022-2024 papers. Use this to decide where to invest study hours, not where to skim. Source ↗ · verified 2026-05.
50/216 marks avg
Kinematics + dynamics + rotation + gravitation
60/216 marks avg
Celestial coordinate systems + Kepler's laws + astrometry
50/216 marks avg
Stellar physics + spectra + cosmology basics
30/216 marks avg
Trigonometry + vectors + calculus applications
26/216 marks avg
Observational astronomy + spherical trigonometry
2025
21 प्रश्न
पेपर दीजिए →2024
21 प्रश्न
पेपर दीजिए →2023
20 प्रश्न
पेपर दीजिए →2022
20 प्रश्न
पेपर दीजिए →2021
19 प्रश्न
पेपर दीजिए →किसी भी मॉक को अपनी पसंदीदा भाषा में दें — मॉक के अंदर भाषा चयनकर्ता का उपयोग करें (हिंदी, तेलुगु, तमिल, बांग्ला और 15 अन्य)।
NSEA — Quick Practice
FULL20 प्रश्न · 180 मिनट
मॉक शुरू करें →NSEA — 2022 (Previous Year)
FULL20 प्रश्न · 180 मिनट
मॉक शुरू करें →NSEA — 2025 (Previous Year)
FULL21 प्रश्न · 180 मिनट
मॉक शुरू करें →Full-length subject tests below — 25 questions each, real exam format, instant scoring. Want to drill a single topic? Every topic has its own 10-question test in the syllabus.
Physics
55 QsMathematics
28 QsElementary Astronomy
38 QsTell Shishya exactly what to test you on — topics, size, difficulty — and get a fresh mock in seconds. Leave the box blank and we'll target your weakest topics.
लीडरबोर्ड पर अपनी जगह देखने के लिए मॉक दीजिए।
Students
6
Mocks taken
18
Average score
36%
Top score
70%
What can I get from NSEA?
Mock-score → expected rank → likely outcome. Use the mocks below to find your current band, then plan how many marks you need to climb.
IOAA team contender — top 20
90–100% · Post-based exam (no numeric rank)
The Indian National Astronomy Olympiad (INAO), Stage-II of the Astronomy Olympiad programme, is scheduled for January 30, 2027, from 9:00 AM to 12:00 PM. Top NSEA scorers will qualify for INAO.
IAPT has started centre registration for NSEA 2026-27 from August 1, 2026. Schools, junior colleges and approved examination centres can register until August 20, 2026. Student enrolment begins August 21.
The National Standard Examination in Astronomy will be conducted on Saturday, November 21, 2026, from 2:30 PM to 4:30 PM. Enrolment fee is ₹300 per subject.
किसी भी टॉपिक पर टैप करें — नोट्स + 10 सवालों का टॉपिक टेस्ट
Units and Measurements
SI units, dimensional analysis, error analysis used heavily in astronomy estimation problems.
Kinematics
Motion in 1D and 2D, projectile motion and relative motion.
Laws of Motion
Newton's laws, friction and circular dynamics.
Work, Energy and Power
Work-energy theorem, conservation laws and elastic/inelastic collisions.
Rotational Motion
Centre of mass, torque, angular momentum and moment of inertia.
OCSC selection range — top 50
82–90% · Post-based exam (no numeric rank)
OCSC borderline — top 100-250
70–82% · Post-based exam (no numeric rank)
INAO qualification likely
55–70% · Post-based exam (no numeric rank)
State merit range
35–55% · Post-based exam (no numeric rank)
Below qualifying threshold
0–35% · Post-based exam (no numeric rank)
AI-curated from historic cut-off patterns. Always verify with the latest official notification before making decisions.
Centre registration opens
बीत गयाSat, 1 Aug, 2026
Schools, junior colleges and approved centres register via iapt.org.in
Centre registration closes
बीत गयाThu, 20 Aug, 2026
Student enrolment opens
बीत गयाFri, 21 Aug, 2026
Students can enrol via school or directly through IAPT portal; fee ₹300
Student enrolment closes
22 दिन बादMon, 14 Sept, 2026
Admit card release (expected)
69 दिन बादSat, 31 Oct, 2026
Based on 2025-26 cycle when admit cards were released on October 31, 2025
🏅NSEA 2026 exam
90 दिन बादSat, 21 Nov, 2026
Saturday, 2:30 PM to 4:30 PM (2 hours)
NSEA result (expected)
122 दिन बादWed, 23 Dec, 2026
Based on 2025-26 cycle; result typically in late December
🏅INAO (Stage-II) exam
160 दिन बादSat, 30 Jan, 2027
Indian National Astronomy Olympiad; 9:00 AM to 12:00 PM; only for NSEA qualifiers
Sets, Relations and Functions
Sets, relations, types of functions and inverse trigonometric functions.
Algebra
Mathematical induction, complex numbers, quadratic equations, sequences and series.
Permutations and Combinations
Counting principles, nPr/nCr and elementary combinatorial reasoning.
Binomial Theorem
Binomial expansion, general term and applications.
Matrices and Determinants
Matrix operations, determinants and solution of linear systems.
Coordinate Geometry
Straight lines, circles and conic sections.
Trigonometry
Trigonometric ratios, identities, equations and inverse trig — heavily used in astronomy.
Three Dimensional Geometry
Direction cosines, lines and planes in 3D.
Vectors
Vector algebra, dot and cross products and applications.
Probability and Statistics
Probability rules, conditional probability, mean, variance and standard deviation.
Mathematical Reasoning
Logical statements, validity of arguments and elementary proof techniques.
Celestial Sphere and Coordinate Systems
Celestial sphere, horizon, equatorial and ecliptic coordinate systems and conversions.
Spherical Trigonometry
Sine and cosine rules on a sphere — used for converting between coordinate systems.
Time and Calendars
Solar and sidereal time, time zones, equation of time, Julian date and calendar systems.
Diurnal and Annual Motion
Daily rising/setting of stars, seasons, solstices, equinoxes and circumpolar stars.
Solar System
Sun, planets, moons, asteroids, comets, meteors and dwarf planets — basic structure and properties.
Celestial Mechanics
Kepler's laws, orbital elements, two-body problem and basic perturbations.
Lunar Phases, Eclipses and Tides
Phases of the Moon, solar/lunar eclipses, occultations, transits and ocean tides.
Stellar Astronomy Basics
Stellar magnitudes, spectral classification, HR diagram and stellar evolution overview.
Photometry and Spectroscopy
Flux, luminosity, inverse-square law, photometric systems and spectral lines.
Galaxies and Cosmology
Milky Way structure, galaxy types, redshift, Hubble's law and basic cosmological ideas.
Night Sky and Constellations
Familiar constellations, bright stars, asterisms and naked-eye object identification.
Telescopes and Instruments
Refracting/reflecting telescopes, magnification, resolving power and modern observatories.
History of Astronomy
Major astronomers and milestones from ancient observations to modern astrophysics.
Central Sector Scholarship Scheme (CSSS)
₹12·Ministry of Education, Govt. of India