46 



PRESIDENTIAL ADDRESS SECTION A. 



creature, above man there must be some power and some divine 

 artist just as immeasurably transcending man. 



Table II 



Comparison of the sun with other stars, and examples of 

 absolute and apparent magnitudes and distances : — 



Absolute Apparent 



Mag-. Mag. 



| M l (m) 



Distance in 

 light-years 



Novae in Andromeda nebula — 4-9* 



Brightest star in M13 — 5-7 



Bright stars in NGC 7006... - 1-5 

 Bright stars in &> Centauri 



(NGC 5139) - 1-5 



58 Persei - 4-2 



a Ursa Minoris — 30 



Nova Aquilae No. 3 



(maxm.) — 4-9 



Nova Persei No. 2 (maxm.) — 4-4 



Canopus — 3-0 



Venus at maxm. 



(March, 1921) .. +290 



a' Herculis — 2-3 



e Aurigae — 20 



13 Herculis - 10 



Pegasi 00 



a Hydrae + 01 



a Tauri -t- 10 



Sirius + 1-3 



3 Geminorum + 1-7 



a Canis Minoris + 3-2 



a' Centauri + 4-8 



The Sun + 4-8 



Boss 2199 + 6-2 



Boss C 594 + 8-5 



Boss C 1244 +10-5 



Barnard's proper motion* ... +13-3 

 Innes's proper motion* +15-4 



Note. 5 log 7T =M-m-5. M = 



+ 17-0 0-000004 



+ 11-9 0000030f 



+ 17 6 0000015t 



+ 126 0-000150f 



+ 4-5 0-002 



+ 21 0010 



- 1-5 0021 + 

 00 0013 + 



- 0-9 0-038 



- 4-3 

 + 3-5 

 + 3-4 

 + 2-8 

 + 2-6 

 + 2-2 

 + 11 



- 1-6 

 + 1-2 

 + 0-5 



• + 0-3 

 -26-5 

 + 6-0 

 + 8-5 

 + 9-2 

 + 9-7 

 + 11-0 



m + 5 + 5 



0-007 

 0008 

 0-017 

 0030 

 0-038 

 0096 

 0-376 

 0126 

 0-347 

 0-794 



0-110 



0-100 



0-182 



0-52 



0-784 



l0Sf 7T. 



780,000 

 109,000 

 217,400 



21,740 



1,630 



326 



155 

 250 



466 



408 



192 



109 



86 



34 



8 



26 



9 



4-11 



30 

 32-6 



18 

 6-27 

 416 



* Assumed equal to Nova Aquilse No. 3 at Maximum, 

 t Assumed correct. J Measured parallax. 



§ A light year = 5'9 million million miles.' 

 A parsec = 19"2 ,, ,, ,, 



„ f=192 

 Parallax 0.1 ( = 2,062,650 Astr 



onomical units. 



