User:Amechania/Angular diameter size comparison

List

edit
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′.
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′
Hubble eXtreme Deep Field 2.3′ × 2′
Venus 60.0″ Mean value at inferior conjunction with Earth. Varies between 9.7″ and 66.1″.
Jupiter 46.9″ Mean value at opposition with Earth. Varies between 30.5″ and 50.1″.
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″.
Mars 17.8″ Mean value at opposition with Earth. Varies between 3.5″ and 25.6″.
Mercury 11.0″ Mean value at inferior conjunction with Earth. Varies between 4.5″ and 13.0″.
Uranus 3.8″ Mean value at opposition with Earth. Varies between 3.3″ and 4.1″.
Neptune 2.3″ Mean value at opposition with Earth. Varies between 2.2″ and 2.4″.
Pluto 80 mas Mean value at opposition with Earth. Varies between 60 mas and 110 mas.
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

edit
  1. 1 2 3 4 5 6 7 8 9 10 Calculated using linear radius and distance