3. To the 7 stars in the 11th hour according to my book we should add η and ρ Leonis:

And then there are several more earlier stars in Leo which we should take the opportunity to list, first of all π close to 10h, and then ν and ψ close to the ecliptic. Furthermore, stars with Greek letters should be more important than those without, and therefore we will also collect data for ω, ξ, and ο:
 
ω Leonis 09h 28m 27.38 09h 28.456m 143.6
ξ Leonis 09h 31m 56.79 09h 31.947m 144.5
ο Leonis 09h 41m 09.12 09h 41.152m 146.8
ψ Leonis 09h 43m 43.90 09h 43.732m 147.4
ν Leonis 09h 58m 13.39 09h 58.223m 151.1
π Leonis 10h 00m 12.82 10h 00.214m 151.6
η Leonis 10h 07m 19.95 10h 07.333m 153.4
Regulus 10h 08m 22.46 10h 08.374m 153.7
ρ Leonis 10h 32m 48.68 10h 32.811m 159.9

Additions to the 10th hour:

 

ω Leonis 5.40 09° 03′ N 09h 26m 143.6 551.6

 

ξ Leonis 4.99 11° 18′ N 09h 30m 144.5 552.5

Subra

ο Leonis 3.52 09° 54′ N 09h 39m 146.8 554.8

 

ψ Leonis 5.36 14° 01′ N 09h 41m 147.4 555.4

 

ν Leonis 5.26 12° 27′ N 09h 56m 151.1 559.1
  π Leonis 4.68 08° 03′ N 09h 58m 151.6 559.6
period 5
Ga3-20 (80) Ga3-21
Alphard (143.3), ω Leonis (143.6)  Alterf (144.4), ξ Leonis (144.5)
period 6
Ga3-22 Ga3-23 Ga3-24 (*148)
 Ukdah (146.4), Subra (146.8) ψ Leonis (147.4), Ras Elaset Australis (147.6)
period 7
Ga4-1 Ga4-2 (*150) Ga4-3 Ga4-4 (88)
  Ras Elaset Borealis (149.7)   ν Leonis (151.1), π Leonis (151.6)

The 11th hour:

Al Jabhah

η Leonis 3.48 16° 46′ N 10h 05m 153.4 561.4

Regulus

α Leonis 1.36 12° 13′ N 10h 06m 153.7 561.7

Shir

ρ Leonis 3.84 09° 18′ N 10h 30m 159.9 567.9

Adhafera

ζ Leonis 3.43 23° 40′ N 10h 14m 155.7 563.7

Tania Borealis

λ Ursa Majoris 3.45 43° 10′ N 10h 14m 155.7 563.7

Algieba

γ Leonis 2.01 20° 06′ N 10h 17m 156.5 564.5

Tania Australis

μ Ursa Majoris 3.06 41° 45′ N 10h 19m 157.0 565.0

Alkes

α Crateris 4.08 18° 02′ S 10h 57m 166.6 574.6

Merak

β Ursa Majoris 2.34 56° 39′ N 10h 59m 167.2 575.2
period 8
Ga4-5 (*153) Ga4-6 (90)
  Al Jabhah (153.4), Regulus (153.7)
period 9
Ga4-7 Ga4-8
  Adhafera, Tania Borealis (155.7)
period 10
Ga4-9 Ga4-10
Algieba (156.5), Tania Australis (157.0)  
period 11
Ga4-11 Ga4-12 (*160) Ga4-13
  Shir (159.9)  
period 12
Ga4-14 Ga4-15
period 13
Ga4-16 (100) Ga4-17 Ga4-18 Ga4-19
      Alkes (166.6)
period 14
Ga4-20 (*168) Ga4-21 Ga4-22
Merak (167.2)