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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryArts, Culture & RecreationCultural & Educational OrganizationsBülachSchul- und Volkssternwarte Bülach
Schul- und Volkssternwarte Bülach Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Schul- und Volkssternwarte Bülach operates a public observatory offering guided observation evenings, group visits and astronomy courses and seminars. The facility houses a twin telescope (85 cm and 50 cm), a ZEISS coudé refractor used for solar observation, seminar and multipurpose rooms, and is operated mainly by volunteers via the Astronomische Gesellschaft Zürcher Unterland (AGZU) under the foundation that owns the observatory.

AI-generated
Offering

Products & services

Industry:Cultural & Educational Organizations
✓ Offered5
Public guided tours
Public guided tours every Friday evening from 8 pm, with no registration and free of charge; weather permitting, sky observation, and in case of bad weather, lectures on astronomical topics.
Group guided tours
Private guided tours for school classes, clubs and companies from Monday to Thursday by appointment, in any weather, about two hours; with a contribution toward expenses for schools and the other groups.
Solar observation
Solar observation from May to August with sunspots and prominences; in addition, observation with solar telescopes and H-alpha and/or white-light instruments.
Renting rooms
Rooms for seminars, courses and conferences are rented externally by arrangement from Monday to Friday until 5 pm; two training rooms with multimedia equipment and a kitchen, no party operations.
Project days for schools
Project days for schools by arrangement in the rented rooms, with early reservation; suitable for school-based astronomical activities.
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4.5/5

Schul- und Volkssternwarte Bülach

Trust & reputation

ranQ Trust Score of Schul- und Volkssternwarte Bülach: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 100% · As of October 2026

Schul- und Volkssternwarte Bülach scores 92.2 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.88.124%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.100.010%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.95.08%
Schul- und Volkssternwarte Bülach scores 84.9 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Schul- und Volkssternwarte Bülach scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).86.722%
Schul- und Volkssternwarte Bülach scores 51.5 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.62.94%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.40.04%
Qualifications+0.00

Schul- und Volkssternwarte Bülach reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.8 out of 5 stars from 122 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.8
of 5

Aggregated from 122 reviews across all connected sources

Sources
GGoogle4.8122
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Press

Media

August 19, 2025Media
Sternwarte Bülach: Bald ist ein total verfinsterter Mond zu sehen
tagesanzeiger.ch
July 21, 2020Media
Auf Kometenjagd in Bülach
tagesanzeiger.ch
September 23, 1983Media
Sternwarte Bülach
srf.ch

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Location

Mittlere Gstücktstrasse 14d
8180 Bülach
Opening hours
Mon
Closed
Tue
Closed
Wed
Closed
Thu
Closed
Fri
20:00 - 00:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Foundation
UID
CHE-110.272.316
Founded
1979 · 47 years
Last commercial register change
September 18, 2026
Employees
1 to 10
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.97.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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