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User:Nussun05/Angular diameter size comparison

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List

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Name Angular diameter Note Reference
Large Magellanic Cloud 10.76° × 9.158° NED
Small Magellanic Cloud 5.27° × 3.104° NED
Andromeda Galaxy 3.176° × 1.029° NED
Pleiades 2.548° Diameter corresponds to where half of the member stars are located. Bibcode:2020A&A...633A..99C
Beehive Cluster 1.97° Diameter corresponds to where half of the member stars are located. Bibcode:2020A&A...633A..99C
47 Tucanae 43.8′ Bibcode:2019MNRAS.489.3093S
Moon 31.6′ Varies between 29.3′ and 34.1′. [1]
Double Cluster 16.32′ (h Persei) and 15′ (χ Persei) Diameters correspond to where half of the member stars are located. Bibcode:2020A&A...633A..99C
Westerlund 1 3′ Bibcode:2013A&A...560A..76M
RSGC1 2.667′ Bibcode:2013A&A...560A..76M
Hubble Deep Field 2.6′ × 2.6′
Hubble Ultra-Deep Field 2.4′ × 2.4′
Webb's First Deep Field 2.4′ [2]
Hubble eXtreme Deep Field 2.3′ × 2′
Venus 60.0″ Mean value at inferior conjunction with Earth. Varies between 9.7″ and 66.1″. [3]
Jupiter 46.9″ Mean value at opposition with Earth. Varies between 30.5″ and 50.1″. [4]
Quintuplet Cluster 30″ Bibcode:2013A&A...560A..76M
Arches Cluster 23″ Bibcode:2013A&A...560A..76M
Saturn 18.8″ Mean value at opposition with Earth. Varies between 14.5″ and 19.9″. [5]
Mars 17.8″ Mean value at opposition with Earth. Varies between 3.5″ and 25.6″. [6]
Mercury 11.0″ Mean value at inferior conjunction with Earth. Varies between 4.5″ and 13.0″. [7]
Uranus 3.8″ Mean value at opposition with Earth. Varies between 3.3″ and 4.1″. [8]
Neptune 2.3″ Mean value at opposition with Earth. Varies between 2.2″ and 2.4″. [9]
Pluto 80 mas Mean value at opposition with Earth. Varies between 60 mas and 110 mas. [10]
R Doradus 51.18±2.24 mas Largest star by angular diameter after the Sun. Bibcode:2019ApJ...883...89O
Betelgeuse 42.28±0.43 mas Bibcode:2014A&A...572A..17M
Antares 37.31±0.09 mas Bibcode:2013A&A...555A..24O
Mira 31.71±0.32 mas Pulsates between 28.9±0.29 mas and 34.92±0.35 mas. Bibcode:2004A&A...421..703W
Arcturus 21.06±0.17 mas Bibcode:2011ApJ...743..135R
Aldebaran 20.58±0.03 mas Bibcode:2005A&A...433..305R
Scheat 17.98±0.18 mas Bibcode:2003AJ....126.2502M
Tejat 15.12±0.15 mas Bibcode:2003AJ....126.2502M
Mirach 13.75±0.14 mas Bibcode:2003AJ....126.2502M
La Superba 11.86 mas Bibcode:1996AJ....112..294D
VY Canis Majoris 11.3±0.3 mas Bibcode:2012A&A...540L..12W
Kochab 10.301±0.103 mas Bibcode:2003AJ....126.2502M
Alphard 9.36±0.06 mas Bibcode:2013MNRAS.434..437C
Rigil Kentaurus 8.502±0.038 mas Bibcode:2017A&A...597A.137K
Canopus 7.184±0.031 mas Bibcode:2021A&A...654A..19D
Dubhe 6.419±0.041 mas Bibcode:2018AJ....155...30B
Toliman 5.999±0.025 mas Bibcode:2017A&A...597A.137K
Sirius 5.993±0.108 mas Bibcode:2003AJ....126.2502M
Procyon 5.448±0.053 mas Bibcode:2004A&A...413..251K
W Canis Majoris 4.89±0.016 mas Bibcode:2013ApJ...775...45V
ψ Ursae Majoris 4.131±0.007 mas Bibcode:2018AJ....155...30B
Edasich 3.559±0.011 mas Bibcode:2018AJ....155...30B
Altair 3.309±0.006 mas Bibcode:2018AJ....155...30B
Vega 3.302±0.008 mas × 2.93±0.014 mas Bibcode:2012ApJ...761L...3M
Polaris 3.28±0.02 mas Bibcode:1999AJ....118.3032N
Rigel 2.606±0.009 mas Bibcode:2018AJ....155...30B
RSGC1-F01 2.156 mas[a] Bibcode:2020AJ....160..145H
Regulus 1.63±0.09 mas × 1.21 mas Bibcode:2018MNRAS.480.1263H
GCIRS 7 1.55±0.03 mas Located at the Galactic Center. Diameter varies due to its pulsation. Bibcode:2021A&A...651A..37G
Chara 1.133±0.034 mas Bibcode:2018AJ....155...30B
Proxima Centauri 1.103±0.007 mas Bibcode:2019MNRAS.484.2674R
Spica 870±40 μas Bibcode:1974MNRAS.167..121H
Adhara 800±50 μas Bibcode:1974MNRAS.167..121H
Mimosa 722±23 μas Bibcode:1974MNRAS.167..121H
Alnilam 660±18 μas Bibcode:2020NatAs...4.1164A
Alnitak 556±29 μas Bibcode:2018ApJ...869...37G
γ² Velorum (O) 440±50 μas Bibcode:1974MNRAS.167..121H
HR 8799 342±8 μas Bibcode:2012ApJ...761...57B
WOH G64 285.8 μas[a] Located in the Large Magellanic Cloud. Bibcode:2009AJ....137.4744L
α Camelopardalis 256±14 μas Bibcode:2018ApJ...869...37G
Menkib 218±16 μas Bibcode:2018ApJ...869...37G
Caesium atom at a distance of 1 meter 122.9 μas Reported for reference
10 Lacertae 110±20 μas Currently the smallest star resolved with the CHARA array. Bibcode:2018ApJ...869...37G
S Doradus 78.29±2.38 μas Located in the Large Magellanic Cloud. Diameter estimated using photometry. Bibcode:2014ASPC..485..223B
PV Telescopii 38.42±1.14 μas A low-mass B-type supergiant almost devoid of hydrogen. Diameter estimated using photometry. Bibcode:2014ASPC..485..223B
Helium atom at a distance of 1 meter 12.79 μas Reported for reference
R136a1 7.998 μas[a] Located in the Large Magellanic Cloud. Bibcode:2022A&A...663A..36B
ULAS J0744+25 5.576 μas[a] Assuming the same linear radius as EH Ceti. Bibcode:2014ApJ...790L...5B
ULAS J0015+01 4.844 μas[a] Assuming the same linear radius as EH Ceti. Bibcode:2014ApJ...790L...5B
Sagittarius A* 4.8+1.4
−0.7
 μas
Bibcode:2022ApJ...930L..12E
EBLM J0555-57Ab 4.143 μas[a] Bibcode:2017A&A...604L...6V
Pōwehi 3.8±0.4 μas Bibcode:2019ApJ...875L...1E
AM Canum Venaticorum 3.217±0.127 μas Diameter estimated using photometry. Bibcode:2014ASPC..485..223B
PG 1555+303 1.879±0.128 μas Diameter estimated using photometry. Bibcode:2014ASPC..485..223B
TON 618 464.6 nas[a] One of the most massive black holes known. Bibcode:2004ApJ...614..547S
β Pictoris exocomets 1.032–4.608 nas[a] Bibcode:2022NatSR..12.5855L
Proton at a distance of 1 meter 347.1 pas Reported for reference CODATA
Earendel 113–430 pas[a] Assuming the light is dominated by a single star. Bibcode:2022arXiv220809007W
Quark (upper limit) at a distance of 1 meter 177.4 fas Reported for reference Bibcode:2016arXiv160401280Z
NGC 5907 ULX 7.818 fas[a] Assuming a linear radius of 10 km. Bibcode:2017Sci...355..817I

Notes

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  1. ^ a b c d e f g h i j Calculated using linear radius and distance